Crash every 30 mins, and i have to close the realm before backing it up. if i dont do so the backup will fail. note: i have 2000 members on my realm and people dont even want to build anything becasue they say its not worth there time because i always have to back up the server 5 hours before the crash{sometimes even more}. once i get the realm back up 9/10 times, the world is comepletly reset or has like 32767 chunk errors. (alot of chunk errors) i hate having to come home with 32767 messages saying FIX THE REALM FIX THE REALM!!! do something about this please PLEASE. no one wants to pay for a realm that barley works
i also like how you said you fixed the crashes...
Having "2000 members" on your realm is really outside the scope of what realms was designed for considering they only intend 10 people to be on at a time. Try using an unmodified client aswell before reporting bugs. If you actually have 2000 players, you should really consider buying an actual minecraft server host elsewhere. I mean I am not saying that you're wrong to try to do it on realms, but a reasonable person would assume that a server you pay less than 10$ a month for was not designed for this kind of load.
All that in mind, there are issues with crashing and rollbacks, but honestly on my realm it happens twice a day tops at this point. I'd recommend trying to find a server host that is intended for this kind of load as at this point, I really don't think that's something you can fault them for when it crashes.
(I am new here, so take what I say with a grain or two of salt)
As an added note, I'd recommend you thoroughly scan minecraft hacks before you install them, I took the time to do so for you here, you may want to run some scans on your pc.