so guys, i've lately farmed my Nighthawk some more and i noticed a major problem. it first started when i tried to equip my printed ammo, and it showed me the message above, i didnt mind it too much but now it's getting serious, i unlocked the Resonating shot and it wont let me equip it, saying the same thing.. anyone have any idea what's up with it? the ammo is ok to not use, but the Resonating shot is an important AOE skill!!! how do i fix it and use my ability? it's really important in order to keep farming exp well.