How I can solve this problem?

Welcome to the community, @atu2051! It seems like you are using the wrong URL while configuring your Collect Android App.

It seems like you are using https://kobo.humanitarianresponse.info. Try replacing it with https://kc.humanitarianresponse.info and that should work. For more details, please feel free to go through our support article to configure the app correctly: