I'm afraid I'm not that familiar with Android. From a quick search on Google, it's possible the problem comes from the webview loaded by the app.
https://stackoverflow.com/questions/57868550/application-error-the-connection-to...
Trying switching to a different one maybe. Maybe this link could help to change it:
https://support.google.com/android/thread/132789210/how-do-i-change-default-webv...
Let me know if that works.