Minecraft world corrupt

Hello, long story but I’m having trouble with my minecraft world which is corrupt.

(By the way the accounts i discuss below are all on the same console)

so when I got my xbox one s I got it with Minecraft for free (ON ACCOUNT 1) However later on because I had lots of problems logging into ACCOUNT 1. I made a new account which is (ACCOUNT 2)

Later on I finally got my password back for ACCOUNT 1 but i had alot of game progress on ACCOUNT 2 so i decided to make that my main account. But i wanted to play Minecraft on ACCOUNT 2 but i had to pay for it. Somehow i made it so ACCOUNT 1 allowed ACCOUNT
2 to have Minecraft for free and then I was able to play Minecraft on ACCOUNT 2. To allow it to happen i had to login into ACCOUNT 1 then i could go back into ACCOUNT 2 to play minecraft, otherwise it would say i don’t own the game. I dont remember what else
i had to do to make ACCOUNT 2 to play minecraft but there is more to it than that, i think it involved family sharing but i dont exactly remember. Anyway, a few days ago i tried to get onto my xbox and it was stuck on the green loading screen so i did a hard
restart about 3 times because it kept freezing on the loading screen. Then i got an error load up: E200 000000EF 8B051009 so i did a factory reset but kept my games and apps. During this time I already thought that I had my minecraft worlds saved on my external
hard drive. So once the factory reset is done I login into both accounts and it asks if I want to use my settings which i already had saved on my external hard drive. I pressed yes. So once i log into both accounts and play minecraft on ACCOUNT 2 i go onto
my world which appears to be not wiped from the factory reset. However, it doesnt sync and pops up saying “The world is not fully synced or has been corrupted. Try playing the world on a console where it’s in a good state and try migrating it again”. I tried
deleting the game and reinstalling it on ACCOUNT 2 but the same problem occured. If anyone knows how I can play my world again which i spent hours of work on please let me know or redirect me to the appropiate people i should be asking. Thanks!

:)