VoLTE Not Working ! Not able to make Jio Calls
Hello developers and members,
Today i realised that my Jio Calls are not working. Then i understood, VoLTE is stopped working, Then i found that even VoLTE enable option is also disappeared in The Mobile networks settings.

So Lets go in little past, few day's back i flashed Magisk v18 and used some modules like Dolby, Sony Bravia Engine and quick switch to use The OnePlus Launcher which is working fine.

So, i can recall that before magisk VoLTE and Jio calls were working fine. But after that Jio Calls and VoLTE are not working. I need help from the community to fix this issue.
Things i have tried :
Wiped Cache/dalvik
Used Magisk module VoEnabler but did'nt helped
Flashed volte fix pie zip file found somewhere on xda
Changed APN settings
Magisk Hide on Phone Services

these things did not worked out, also on the engineer mode under the IMS Service it is showing not registered and VoLTE is unavailable ! Also my IMEI no. is showing( to help you furnish with more details so you can help me efficiently) and also a lot of users have said that they cannot make calls from the JIO Network.
I would be thankful if you can help me fix this issue as soon as possible, i am also tired of doing frequent reboots after doing some fix...