Stop working suddenly problem, in Meta Editor??!!!

 

Recently, I have a big problem. Meta Editor suddenly stop working and need to play again for continue. Sometimes this situation make a lot of risk on my account. I hadn’t this problem until last week, it’s appear now and I can’t fix it. Recently, I installed 10 Meta trader program at different path in my computer because I want to work by more than one account simultaneously. This installation was wrong? Or another thing? Thanks.