Rule 1.7. Only the owner of the account is responsible for the actions done on that account.
We can't restore your gear since it was your fault that you lost the gear. Next time don't share your account with anyone not even with your brother.
Declined
Some servers used to do that it's called "server migration" as I remember and they did it to promote their servers but here on pandawow I believe that it's not the best idea. Anyway, it's not possible.
Closed
In your case it's better to delete only itemtextcache.wdb instead of whole cache folder. Remember it's important to delete itemtextcache.wdb everytime you're log-in game but of course once in a while it's good to delete cache from your wow directory (when administration implementing fixes)
Try to have deleted itemtextcache.wdb everytime you log-in maybe this is causing disconnects.
Cache>WDB>enGB>itemtextcache.wdb and delete it
Tell me if it worked
Multiboxing and botting are two different things just to clarify this. Multiboxing is allowed in our server but botting is bannable and since you claim that this guy is botting we should check it.
Thats good news. I just let you know that the issue is with guild as I see the guild has 5780 members and because guild is overpopulated it's causing lag to your character.