Please help me to know this error.

[Abhishek Pathania]

Traceback (most recent call last):
  File "peewee.py", line 3322, in execute_sql
sqlite3.OperationalError: database is locked

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "swatplus_api.py", line 120, in <module>
  File "actions\read_output.py", line 164, in read
  File "actions\read_output.py", line 321, in setup_meta_tables
  File "peewee.py", line 2036, in inner
  File "peewee.py", line 2107, in execute
  File "peewee.py", line 2625, in _execute
  File "peewee.py", line 3330, in execute
  File "peewee.py", line 3320, in execute_sql
  File "peewee.py", line 3088, in __exit__
  File "peewee.py", line 196, in reraise
  File "peewee.py", line 3322, in execute_sql
peewee.OperationalError: database is locked
[PYI-22184:ERROR] Failed to execute script 'swatplus_api' due to unhandled exception!