Could not install <appname> error in TestFlight

Hello, I have encountered this error in all the applications I have listened to so far on my individual developer account and I cannot test it. I heard that different developer friends of mine are experiencing this problem, especially on individual accounts. All test users I added to my account also have this problem. They all have different phones and operating system versions.

I tried a lot of solutions on different computers, Xcode versions, etc. But I couldn't find a solution. Could you please help with this?

I create a new post in an edited form, can you delete it?

Could not install &lt;appname&gt; error in TestFlight
 
 
Q