This message describes a known issue that has been already fixed.
Survey Solutions version 20.04 added a new feature: filter for categorical questions linked to list, which was previously not possible. For servers that are still not updated (below 20.04) an attempt to import a questionnaire from the Designer site to the HQ resulted in a message citing incompatibility even for questionnaires that didn’t use this feature (old questionnaires).
The issue has already been fixed.
If you experienced this problem, please retry to import the questionnaire.