Very odd. I’d like you to try something – Log out of the Galaxy server where you are working (all browser tabs closed). Then log back in. This should at least reset your quota usage to be correct. Then go to your “Saved Histories” and re-check the status there. You might need to use the Advanced Search with the option “status = all”.
To delete an entire history is a two-step process. It would be very unlikely to happen by accident. But if you’re brand new to using Galaxy, I could understand how trying to permanently delete (purge) datasets could get confused with purging an entire history (guessing that is what happened, or something similar).
Did this happen at the Galaxy Main public server https://usegalaxy.org? If yes, please post back the history name. I found your account here and reset quota as admin. The quota usage is now at 0%, confirming that any data that may have been in here was permanently deleted. I haven’t looked in detail yet - I need to know which history seems problematic.
If working somewhere else, please share URL if public. We can usually help you to contact the administrators. Not all visit this forum.
Thanks and let’s follow up. We usually cannot recover purged data, but I’d like to check the log for that history. We can find out when it was deleted, et cetera.
Meanwhile, you might want to start over and get your jobs in the queue.