I followed the steps on the following GitHub page and switched back to version 4.77.1 successfully.
https://github.com/qnblackcat/How-to-Downgrade-apps-on-AppStore-with-iTunes-and-Charles-Proxy
Hope this helps.
I followed the steps on the following GitHub page and switched back to version 4.77.1 successfully.
https://github.com/qnblackcat/How-to-Downgrade-apps-on-AppStore-with-iTunes-and-Charles-Proxy
Hope this helps.