Importing an excel/csv file on all my custom models work except on one specific model where I get this error:

Unknown error during import: : expected 'else' after 'if' expression (, line 2) at multiple rows

Anyone has any idea as to what's going on or how to solve this error? It's a very simple module, with 3 number fields and two references to other modules (one2many)

I'm on Odoo Online version saas~16.4+e