CANT ATTACKS MOBS IN POE2

Hello, I have a problem with my invoker. When I wear a quaterstaff, I can't attack with my mouse keybinds. I've checked that I have the right stats, the right spells, the right level of quaterstaff, etc... nothing seems to work. I tried with my second character, a witch, and everything works. When I go to the settings, the parameter for assigning the key to the first ability is greyed out, so I can't put/modify anything in it. Even when I assign my ability to a key on the keyboard, it still doesn't work. However, having equipped a bow, I can attack any arrow-based spell, but it has to be assigned to a key on the keyboard. If it's associated with a mouse shortcut, it doesn't work. Do you have any solutions please?

playername : ZenMakji
serv: Paris (EU)
not in hardcore mode

i found it, problem solved !