Sorry to hear you’ve been having issues. Please could you try downloading the data from the project page to see if it matches the data in Gitlab. Do not switch the project to inactive.
Do you have “save incomplete results” and “save periodically” both turned on? (I typically don’t use either myself).
How long is your study (for a typical participant)?
Please could you PM me the URL of the study so we can investigate further (or post if here if you are happy for it to be public)?