Celery problem in Hawthorn

I have a problem restarting notifier-celery-workers in hawthorn.

The supervisorctl log shows a

2021-05-10 07:43:47,260 [ERROR] [service_name=notifier] [init] Unrecoverable error: OperationalError(‘database is locked’,)
OperationalError: database is locked

And the forums are not working.

Someone has solved this issue?

Thank you.

It seems to be a problem related to the sqlite database

How can I unlock that data bases?

Thank you in advance