Since the release of 1.19.7, Realms purchases on PlayStation have been failing for many users. We have an update rolling out today that should resolve this! - jhp

Has anyone else got the 1.19.72 update and can no longer access Realms?

If you're having issues with your Realms, please reach out to our Realms team for further assistance. Please send us an email at aka.ms/Minecraft-Support and we will assist. Remember to attach your Transaction ID and account name / Gamertag. ^BT

I’m also having the same issue

I updated the game, restarted ps5, now I can access all my realms.