Custom model load failure

[narsik123]

When trying to load data from a SQL Server database, I get the following error.

To Reproduce
Steps to reproduce the behavior:

1. Connected to SQL Server
2. Extracted the tables from the database
3. Selected one table from the list

5. Selected "Next"
   My expected behavior was for the system to display the attributes. But I got the error above.
   I do not see any errors regarding in the logs.

wren-ui logs
2025-02-17 05:45:11 [2025-02-17T10:45:11.719] [DEBUG] IbisAdaptor - Getting tables from ibis
2025-02-17 05:47:00 [2025-02-17T10:47:00.114] [DEBUG] IbisAdaptor - Getting tables from ibis
2025-02-17 05:47:40 [2025-02-17T10:47:40.259] [DEBUG] IbisAdaptor - Getting tables from ibis
2025-02-17 05:49:43 [2025-02-17T10:49:43.915] [DEBUG] IbisAdaptor - Getting tables from ibis
2025-02-17 05:50:31 [2025-02-17T10:50:31.509] [DEBUG] IbisAdaptor - Getting tables from ibis
2025-02-17 05:50:50 [2025-02-17T10:50:50.282] [DEBUG] IbisAdaptor - Getting tables from ibis
2025-02-17 05:51:07 [2025-02-17T10:51:07.233] [DEBUG] IbisAdaptor - Getting tables from ibis