Huge memory usage and freezes

Since the last 2 weeks, the memory usage of C trader are going to the roof. It is impossible to work with this situation, it freezes or crashes very often.

before, c trader used a lot of memory but my computer handled it well. but for about ⅔ weeks now. I have a huge memory usage from C trader and it freezes after a while or even crash some times. No it is not my video card. My computer as a lot of power and memory. And it is new from the last 2 weeks.

Can you please offer something to work with, because it is impossible to trade right now. 

Waiting something to be able to work with. Thank you.