Web Viewer Error Code:2

Hello,

I developed an app with the editor that is currently available for download in the Play Store. Yesterday I wanted to update the app and see new contacts. OnePlus 7Pro, Samsung Galaxy A70, …) is an error code heard:

Error loading page
Domain: undefined
Error Code: 2
Description: SSL error: Hostname mismatch

What I’ve done so far is that I got the SSL certificate with the exact url and died when Android web viewer kept the cash and storage and got multiple devices. I still have the mistake. Please help,

thank you in advance,

best regards
Manuel Ness