Cannot create list

Hi
The list is not created.
Only when I reset calendar connection it starts working but for a while, soon I cannot create it again. Why?
Also cannot remove the list connected to Icloud sync for some reason.

Thanks for using GoodTask. Do you have Reminders app working properly? Please check if it works well. GoodTask is based on Reminders database so it depends on Reminders app. Thanks!

Yes
Reminders works and can create/remove lists
But GoodTask no

Would you share screen recordings to contact@hahaint.com ? It would be helpful. Thanks!

Just sent email to you