Can't change into one of my classes

This has been going on for awhile but it's gotten to the point where I'm unable to equip one of my classes. Sometimes when I would try and change to one of my pre-set classes I would get a notice saying that I have "insufficient armory 'place type of gear here (chest, legs, hands, etc)' space". But when I change to another one of the classes I could equip and then change into the class I wanted, I could. Now I'm unable to equip my Marauder class even if I were to directly grab the weapon out of my armory and place it on my character's weapon slot. And I even tried to take of my gear out of my armory and place it into my inventory so that I would have room and that didn't help. Please help!

Ok. I just went in a decided to try something different. I took one piece of armor out of every armory slot, two for the rings, and tried again. It works now. It seems I was a goof and never noticed that the armor I was wearing would need a slot in both the head and feet part free so they could replace my gear set since the chest piece is both a chest and head piece and the legs are both a legs and feet piece. If a gm see this will you please delete this thread since I can't figure out how to do it myself? lol Thank you for putting up with my airhead moment.