Why is my Android 9.0 phone busying calls when people call me?

[Android Central Question]

My contact app is not working. It's in the phone but not installed. I can't enable it.

 

[belodion]

Is this a newly-acquired phone, or has it worked in the past?

 

[B. Diddy]

Welcome to Android Central! Which phone, and which carrier? When you say it's "busying calls," do you mean that when people call you, all they get is a busy signal? What does your Contacts app have to do with that?

 

[belodion]

Bear in mind that we can't help you if you don't reply, in which case you must seek help elsewhere. I don't know of any better sites for such help than this, but let us know if you find one.