duplicate entry

(env)root@satishvm:/home/satish/frappe-bench/sites# frappe --restore site1.local /tmp/database.sql --force
MySQL root password:
Created user site1.local
Created database site1.local
Granted privileges to user site1.local and database site1.local
Starting database import...
Imported from database /tmp/database.sql
Updating frappe                     : [========================================]
Updating Pages                      : [========================================]
Updating Generators                 : [========================================]
Installing Fixtures...
*** Scheduler is disabled ***
*** Scheduler is disabled ***
(env)root@satishvm:/home/satish/frappe-bench/sites# frappe --install_app erpnext site1.local
Traceback (most recent call last):
  File "/home/satish/frappe-bench/env/bin/frappe", line 9, in <module>
    load_entry_point('frappe==4.1.0', 'console_scripts', 'frappe')()
  File "/home/satish/frappe-bench/apps/frappe/frappe/cli.py", line 53, in main
    return run(fn, parsed_args)
  File "/home/satish/frappe-bench/apps/frappe/frappe/cli.py", line 81, in run
    out = globals().get(fn)(*args.get(fn), **args)
  File "/home/satish/frappe-bench/apps/frappe/frappe/cli.py", line 67, in new_fn
    return fn(*args, **new_kwargs)
  File "/home/satish/frappe-bench/apps/frappe/frappe/cli.py", line 347, in install_app
    install_app(app_name, verbose=verbose)
  File "/home/satish/frappe-bench/apps/frappe/frappe/installer.py", line 107, in install_app
    add_module_defs(name)
  File "/home/satish/frappe-bench/apps/frappe/frappe/installer.py", line 196, in add_module_defs
    d.save()
  File "/home/satish/frappe-bench/apps/frappe/frappe/model/document.py", line 163, in save
    self.insert()
  File "/home/satish/frappe-bench/apps/frappe/frappe/model/document.py", line 145, in insert
    self.db_insert()
  File "/home/satish/frappe-bench/apps/frappe/frappe/model/base_document.py", line 202, in db_insert
    ), d.values())
  File "/home/satish/frappe-bench/apps/frappe/frappe/database.py", line 107, in sql
    self._cursor.execute(query, values)
  File "/home/satish/frappe-bench/env/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 205, in execute
    self.errorhandler(self, exc, value)
  File "/home/satish/frappe-bench/env/local/lib/python2.7/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
    raise errorclass, errorvalue
frappe.exceptions.NameError: (u'Module Def', u'Accounts', IntegrityError(1062, "Duplicate entry 'Accounts' for key 'PRIMARY'"))