AnkiDroid can't add note

Hi everyone,
Please can someone help me because when I use AnkiDroid (2.15.6) it keeps crashing everytime I click “add note” it immediately exits the app and announce: “Not responding” feedback” or “error” is written at the bottom.
I’ve tried reinstalling AnkiDroid on CH Play, disabling and then removing all my add-ons and starting Anki but none of this has made a difference. It crashes all the time.
I have also rebuilt the database many times and never found any problems.
Thanks for any advice you can share on how I can prevent the problem.
Thank you very much :pray::pray: