These do not look like ghosts...

I've been trying to get back into using my 3d printer and tried to print these little ghost guys. I have had one successful print recently, after not using it for over a year. However whenever I leave the room while it's printing I come back to some weird mess that I have no idea how it got like that. If anyone has experienced something like this or knows a reason/solution for this it would be very appreciated.

Printer is creality ender-3 v2 and I am using PLA filament that is by the same brand as the printer.