Can't play realm with the resource pack applied

Hi, so there were no problems using my realm before with the applied texture pack. But after the update, the game won't open unless the texture pack is removed. I tried to log off with my Microsoft account and close the realm but that didn't help. I don't know if the texture pack needs an update and I think it cannot be updated, I am confused and I don't know what to do next. Although I have a fast internet connection, it says that I need to check my network connection. I hope it will be fixed, thank you.