Unable to equip weapon

First of All I apologize for any mistake, english is not my first language

Have any of you had problems equipping weapons?

I was using the crossbow without issues, then I advanced a weapon prestige with it, equipped the prestige attachment, went into a game and noticed the attachment wasn't on, that same game later crashed and when I tried to check the attachment in the armory to make sure I had it on the weapon, I received a dev error and now I can't equip the crossbow

I would appreciate any help if possible, I've seen a lot of complaints about this update