Http response one or more validation errors occurred

hi i am new for ionic and angular i work in app and when i tried to test the project on real device and when i try to enter to regester page i faced this error (one or more validation errors occurred) and i am sure all the input write based on the validation term ? i dont now where the problem is ???!!

plese i need help

Hi & welcome

Plse post errors as text

And from then picture I get CORS feelings.

Plenty of posts on CORS in this forum and docs