Error:
Odoo Server Error

Traceback (most recent call last):
  File "/data/build/odoo/odoo/addons/base/models/ir_http.py", line 229, in _dispatch
    result = request.dispatch()
  File "/data/build/odoo/odoo/http.py", line 681, in dispatch
    result = self._call_function(**self.params)
  File "/data/build/odoo/odoo/http.py", line 359, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/data/build/odoo/odoo/service/model.py", line 93, in wrapper
    return f(dbname, *args, **kwargs)
  File "/data/build/odoo/odoo/http.py", line 347, in checked_call
    result = self.endpoint(*a, **kw)
  File "/data/build/odoo/odoo/http.py", line 925, in __call__
    return self.method(*args, **kw)
  File "/data/build/odoo/odoo/http.py", line 529, in response_wrap
    response = f(*args, **kw)
  File "/data/build/odoo/addons/web/controllers/main.py", line 1320, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/data/build/odoo/addons/web/controllers/main.py", line 1312, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/data/build/odoo/odoo/api.py", line 385, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/data/build/odoo/odoo/api.py", line 372, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "/data/build/odoo/addons/website/models/ir_ui_view.py", line 510, in save
    super(View, self).save(value, xpath=xpath)
  File "/data/build/odoo/addons/web_editor/models/ir_ui_view.py", line 185, in save
    self.save_embedded_field(arch_section)
  File "/data/build/odoo/addons/web_editor/models/ir_ui_view.py", line 51, in save_embedded_field
    value = converter.from_html(Model, Model._fields[field], el)
  File "/data/build/odoo/addons/web_unsplash/models/ir_qweb.py", line 28, in from_html
    return super(Image, self).from_html(model, field, element)
  File "/data/build/odoo/addons/web_editor/models/ir_qweb.py", line 372, in from_html
    field = query.get('field', fragments[5])
Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/data/build/odoo/odoo/http.py", line 637, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/data/build/odoo/odoo/http.py", line 318, in _handle_exception
    raise exception.with_traceback(None) from new_cause
IndexError: list index out of range