Galaxy S6 Not registered on network

Hello! I have a Galaxy S6 G920F and I think my imei got corrupted or something it went to 350000000000006 and now I can't call because it says not registered on network. I tried reinstalling stock rom and it didnt fixed it. Maybe it was because I rooted the phone? If yes how can I fix it I doesnt have an efs backup.
Thanks!

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