Cannot connect to realms and cannot restore backup

I experienced unbearable lag that ultimately killed me. Once i respawned, I got kicked and have not been able to log back into the server since. Nobody else can access the realm either.

 

Every time I try, the attached comes up. I have tried restoring a backup but they fail every time. I tried downloading the world on my Switch but it won't let me so I bought MCPE to download the world. I could rue-load this world but concerned that other players will lose their inventories?

Anybody know any workarounds for being unable to connect to realms like this?