World is not appearing?

Hello

i was working on my server yesterday i created world "Memorial" it showed on worlds tab

today i was entering server i saw that i cant access it and i cant see it on https://aternos.org/worlds

so i created new one

but still cant appear on https://aternos.org/worlds

and thanks

im sure that i created it if you want i can create it again then i can join it

when i restart server it just deleted

other worlds is fine