I can't enter a room or buy weapons and items on Item Shop

Hello all, I have a big problem here, my computer is windows 7 but my crossfire always have errors, BIG ERRORS, sometimes i connect, alright but when i wanna send a whisper it gets freezed, and when i'm gonna enter a room it freezes for hours and i just close it whit the Windows Task Manager, aslo i make some surveys, i earned 15,000 zp i bought SPOP, and twice 20K GP + Hazard Name Card and it never come, and then i waited two days and then they come, i bought M16A2 whit BP it taked along to arrive, then i'm really sad because my crossfire isn't working anymore, i want it work again. I have 40K GP, I wanted to buy K-2 i clicked BUY BUY BUY and never BUY IT!

Aslo when i finish playing (well not playing) It says this:



If you didn't understood me, please sorry my english is bad.