Getting kicked from my own realm because of texture packs when none are applied

Been getting kicked from my own realm after a few minutes of being in it and the game showing me an error about texture packs being too large for my device. (I have 20GB free) After the message I'm still not able to join even after removing all texture packs. So then, I upload an older backup to the realm and take off all resource packs play for a few minutes and the same kick and error message occurs even without any resource packs.

    I've noticed I would get kicked around the world spawn, and was suspecting this might be attack by hackers on my realm as it has been attacked by hackers many times.

    Also, a few weeks ago me and other players were getting kicked with the error message that they have been kicked by the operator when I am the only operator and haven't kicked no one nor myself. (This might be related but hasn't shown me this error in a while after uploading backups) (Also the word "Large" is capitalized and other grammatical errors which makes me think this is not an official error message.)

Realm Code: PEME2z1hVvE