odoo error

Error:
Odoo Server Error

Traceback (most recent call last):
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 1128, in _validate_fields
    check(self)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 351, in _check_xml
    self.postprocess_and_fields(view.model, view_doc, view.id)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 1105, in postprocess_and_fields
    self.raise_view_error(_('Model not found: %(model)s') % dict(model=model), view_id)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 568, in raise_view_error
    raise ValueError(message)
ValueError: Model not found: openg2p.disbursement.batch.transaction

Error context:
View `openg2p.disbursement.batch.transaction.form`
[view_id: 789, xml_id: n/a, model: openg2p.disbursement.batch.transaction, parent_id: n/a]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 758, in parse
    self._tags[rec.tag](rec, de, mode=mode)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 663, in _tag_record
    record = model.with_context(rec_context)._load_records([data], self.mode == 'update')
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3910, in _load_records
    records = self._load_records_create([data['values'] for data in to_create])
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3824, in _load_records_create
    return self.create(values)
  File "<decorator-gen-33>", line 2, in create
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/api.py", line 462, in _model_create_multi
    return create(self, arg)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 428, in create
    return super(View, self).create(vals_list)
  File "<decorator-gen-3>", line 2, in create
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/api.py", line 462, in _model_create_multi
    return create(self, arg)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3641, in create
    fields[0].determine_inverse(batch_recs)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/fields.py", line 1200, in determine_inverse
    getattr(records, self.inverse)()
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 275, in _inverse_arch
    view.write(data)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 445, in write
    res = super(View, self).write(self._compute_defaults(vals))
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3366, in write
    self._write(store_vals)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3502, in _write
    self._validate_fields(vals)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 1132, in _validate_fields
    raise ValidationError("%s\n\n%s" % (_("Error while validating constraint"), tools.ustr(e)))
odoo.exceptions.ValidationError: ('Error while validating constraint\n\nModel not found: openg2p.disbursement.batch.transaction\n\nError context:\nView `openg2p.disbursement.batch.transaction.form`\n[view_id: 789, xml_id: n/a, model: openg2p.disbursement.batch.transaction, parent_id: n/a]', None)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/http.py", line 656, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/http.py", line 314, in _handle_exception
    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/pycompat.py", line 87, in reraise
    raise value
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/http.py", line 698, in dispatch
    result = self._call_function(**self.params)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/http.py", line 346, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/service/model.py", line 98, in wrapper
    return f(dbname, *args, **kwargs)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/http.py", line 339, in checked_call
    result = self.endpoint(*a, **kw)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/http.py", line 941, in __call__
    return self.method(*args, **kw)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/http.py", line 519, in response_wrap
    response = f(*args, **kw)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/web/controllers/main.py", line 967, in call_button
    action = self._call_kw(model, method, args, {})
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/web/controllers/main.py", line 955, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/api.py", line 759, in call_kw
    return _call_kw_multi(method, model, args, kwargs)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/api.py", line 746, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "<decorator-gen-62>", line 2, in button_immediate_install
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_module.py", line 75, in check_and_log
    return method(self, *args, **kwargs)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_module.py", line 446, in button_immediate_install
    return self._button_immediate_function(type(self).button_install)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_module.py", line 562, in _button_immediate_function
    modules.registry.Registry.new(self._cr.dbname, update_module=True)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/modules/registry.py", line 86, in new
    odoo.modules.load_modules(registry._db, force_demo, status, update_module)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/modules/loading.py", line 419, in load_modules
    processed_modules += load_marked_modules(cr, graph,
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/modules/loading.py", line 311, in load_marked_modules
    loaded, processed = load_module_graph(
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/modules/loading.py", line 222, in load_module_graph
    load_data(cr, idref, mode, kind='data', package=package, report=report)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/modules/loading.py", line 68, in load_data
    tools.convert_file(cr, package.name, filename, idref, mode, noupdate, kind, report)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 802, in convert_file
    convert_xml_import(cr, module, fp, idref, mode, noupdate, report)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 865, in convert_xml_import
    obj.parse(doc.getroot(), mode=mode)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 755, in parse
    self.parse(rec, mode)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 761, in parse
    pycompat.reraise(
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/pycompat.py", line 86, in reraise
    raise value.with_traceback(tb)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 758, in parse
    self._tags[rec.tag](rec, de, mode=mode)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/tools/convert.py", line 663, in _tag_record
    record = model.with_context(rec_context)._load_records([data], self.mode == 'update')
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3910, in _load_records
    records = self._load_records_create([data['values'] for data in to_create])
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3824, in _load_records_create
    return self.create(values)
  File "<decorator-gen-33>", line 2, in create
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/api.py", line 462, in _model_create_multi
    return create(self, arg)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 428, in create
    return super(View, self).create(vals_list)
  File "<decorator-gen-3>", line 2, in create
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/api.py", line 462, in _model_create_multi
    return create(self, arg)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3641, in create
    fields[0].determine_inverse(batch_recs)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/fields.py", line 1200, in determine_inverse
    getattr(records, self.inverse)()
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 275, in _inverse_arch
    view.write(data)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/addons/base/models/ir_ui_view.py", line 445, in write
    res = super(View, self).write(self._compute_defaults(vals))
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3366, in write
    self._write(store_vals)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 3502, in _write
    self._validate_fields(vals)
  File "/opt/bitnami/odoo/lib/odoo-12.0.post20210915-py3.8.egg/odoo/models.py", line 1132, in _validate_fields
    raise ValidationError("%s\n\n%s" % (_("Error while validating constraint"), tools.ustr(e)))
odoo.tools.convert.ParseError: "Error while validating constraint

Model not found: openg2p.disbursement.batch.transaction

Error context:
View `openg2p.disbursement.batch.transaction.form`
[view_id: 789, xml_id: n/a, model: openg2p.disbursement.batch.transaction, parent_id: n/a]
None" while parsing /opt/bitnami/odoo/addons/openg2p_disbursement_advice/views/openg2p_disbursement_batch_transaction.xml:4, near
<record id="view_openg2p_disbursement_batch_transaction_form" model="ir.ui.view">
            <field name="name">openg2p.disbursement.batch.transaction.form</field>
            <field name="model">openg2p.disbursement.batch.transaction</field>
            <field name="arch" type="xml">
                <form string="Batch Form">
                    <header>
                        <button name="action_confirm" type="object" states="draft" string="Approve" class="oe_highlight"/>
                        <button name="action_pending" type="object" states="confirm" string="Pending" class="oe_highlight"/>
                        <button name="action_transaction" type="object" states="pending" string="Complete" class="oe_highlight"/>
                        <button name="create_bulk_transfer" type="object" states="confirm" string="Make Transfer" class="oe_highlight"/>
                        <button name="bulk_transfer_status" type="object" states="pending" string="Check Status" class="oe_highlight"/>
                        <field name="state" widget="statusbar"/>
                    </header>
                    <sheet>
                         <div class="oe_title">
                            <label for="name" class="oe_edit_only"/>
                            <h1>
                                <field name="name"/>
                            </h1>
                         </div>
                        <group>
                            <group name="primary">
                                <field name="program_id" options="{'no_create_edit': True}"/>
                                <field name="request_id" invisible="1"/>
                            </group>
                        </group>
                        <group name="secondary">
                            <label for="date_start" string="Period"/>
                            <div name="date">
                                <field name="date_start" class="oe_inline"/> - <field name="date_end" class="oe_inline"/>
                            </div>
                        </group>

                        <group>
                            <group>
                            <field name="transaction_status" attrs="{'invisible':[('state','!=','pending'),('state','!=','paymentstatus')]}"/>
                            <field name="total_transactions" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                            <field name="ongoing" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                            <field name="failed" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                            </group>
                            <group>
                                <field name="total_amount" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                                <field name="completed_amount" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                                <field name="ongoing_amount" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                                <field name="failed_amount" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                            </group>
                        </group>
                        <group>
                            <field name="transaction_batch_id" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                            <field name="request_id" attrs="{'invisible':[('state','!=','paymentstatus')]}"/>
                        </group>
                        <group string="Beneficiaries">
                            <field name="all_beneficiaries" nolabel="1">
                                <tree editable="bottom">
                                    <field name="acc_holder_name"/>
                                    <field name="amount"/>
                                </tree>
                            </field>
                        </group>
                        <group>
                            <field name="total_disbursement_amount" string="Total Disbursement Amount"/>
                        </group>
                    </sheet>
                    <div class="oe_chatter">
                        <field name="message_follower_ids" widget="mail_followers"/>
                        <field name="message_ids" widget="mail_thread"/>
                    </div>
                </form>
            </field>
        </record>