pymysql.err.InternalError: (1205, 'Lock wait timeout exceeded; try restarting transaction')

This error message is usually encountered when a transaction is waiting for a lock that is held by another transaction for a long period of time. The transaction is unable to acquire the lock and times out after a certain period of time.

To resolve this issue, you can try the following steps:

1. Increase the lock wait timeout value in the MySQL configuration file.

2. Optimize the query that is causing the lock to be held for a long time.

3. Restart the transaction and try again.

4. Check if there are any long-running transactions that are causing the lock to be held for a long time, and try to optimize or terminate them.

5. If none of the above steps work, you may need to consult with a database administrator or MySQL support for further assistance.