Missing ALL map pages from adventure

Hello I have found out (after xmas downtime) that I am missing ALL map pages from my adventure - which is really! strange (I have done some testing) and even If I would accidentaly delete map from my library - map pages would be still there.  - I have tried rollback which is five days ago only - without success what is weird - all those pages are also missing from "backup" campaign.. 

If you delete a map from your art library, then you might be lucky to see it still when you visit a map, but only because it is cached locally by your browser. If the browser cache is cleared, then the maps will no longer load.

Yeah thats what I figured - but thing is that also those map pages are missing - when I did try to create new map - delete "map image" from library - map page was still there with tokens etc.. and all this is gone

Dungeon Master, could you try rephrasing that? Parts of the sentence sound contradictory: "map pages are missing" vs "map page was still there with tokens etc". Do you mean that the page itself has disappeared, or just the map image missing, but the tokens still in existence?