After migrating an existing database to firebird I get a problem with linking a subform to a form.

The data of the subform cannot be loaded. Error message: SQL error code = -206. Column not found LINK_FROM_ID. How can I make this link work again? I tried deleting the link and restoring it in the migrated system. This does not work.

Hello,

This was a bug in past versions of LibreOffice. For link(s) to reported bug and method to repair see my answer in this post → Form got broken with Libreoffice Base version 6.1.5.2 and later [MySQL(ODBC)]