Hello @Rutmil,
Welcome to the community!
If you need help with your device feel free to contact us over these methods and we'll be happy to help. We may need to reset your network.
Hi there @Rutmil , sorry to hear that you are having random error messages on your phone. Have you tried a restart, or remove the Sim restart and reinsert the Sim? You could also try a network reset. What type of device do you have? I have a Samsung and found that by turning on RCS, fixed that issue for me. Apparently RCS is only available on the Pixel and some models of the Samsung line, so it doesn't work for everyone.
