Share stopped because of critical changes

The full text of the error message is:

Share stopped because of critical changes in some of the tasks you are trying to share.

One of the changed tasks contains result queries without a list of feature objects.

One of the "usual suspects" when this occurs are automation tasks with no results and using versions older than 2023.4c / 2024.2. If you have such tasks and use an old version client, you can delete the task and try to share everything else.

You can also try to share only a selection of tasks at a time and see if you can pinpoint the problematic one in that way.