Game doesn't work

good evening, for a few days (following an update), I have no longer been able to play. I can no longer host or participate in custom maps. as I enter the waiting room of a map, I am sent back to the lobby and if I try to host one, I no longer see the maps in the selection window but only the folders of my computer. Any ideas?

i tried to reinstall it few times
tried to drago the Maps Folder to documents folder ad pc folder…without chanche