Hi @Pratyush Sharma
For testing I'm only using my android phone. I disabled all other devices. It's a android 10 device with Enpass 6.4.5.368.
The password vault was initially created on Debian Linux, Enpass version 6.4.1 (643)
In general I'm use the latest Linux and osx version of Enpass.
I don't get an error code only the option to solve the issue. In English it would be something like: " Synchronisation error. The password for the data on WebDAV is required" Then Enpass asker's me for my password but does not accept that password.
Best,
Alex