Assistive Touch not working for Apple Pay and app downloads on iPhone

i try to pay my apple pay account and instead of face recognition, i get "confirm wit Assistive touch" .. I get the same message when i try to get an app... im not sure how to fix this problem

[Re-Titled by Moderator]

Original Title: assistive touch is not working, i cannot pay my apple pay account, i cannot get any apps... i dont understand when and how this changed