Field field_certificate_expire_results is unknown

Step for resolve the issues

-Update the database
- Check for Module Dependencies & Confirm that all required dependencies for Opgino LMS are installed and enabled.
- clear the cache
I hope these steps fix your issues

Hi @zartab

Updated the database using drush updb and I checked all the dependencies that were already installed and enabled and cleared the caches, but still no luck.

In which opigno version this (field_certificate_expire_results) field added?

These fields(field_certificate_expire and field_certificate_expire_results) were added long before opigno version 3.1.0 probably even before opigno 8x-2.21. Unfortunatly these fields were removed manually for customization of the expiration of training handled via our custom tables.