I have disabled all other plugins, then it still shows that error when I update the user.
If I don’t click “generate password” at the user profile via admin console, updating profile won’t show that error. If I click “generate password”, it shows that error.
When I create the new user at the admin console, it doesn’t show that error, but it displays a blank white page after I click “add new user”, which is not expected.
If I turned on the debug mode and repeated the same process, I got one more warning before that error.
Notice: Undefined index: dataset_id in …/wp-content/plugins/projectmanager/admin/admin.php on line 2872
Hope this can help you figure out the issue.
