Commercial EA has stopped executing

 

Hello,

My commercial EA has simply stopped executing trades. I have it working on an Alpari MT4 demo account. It worked ine for two months and then stopped. I have performed all of the trouble shooting I can think of...Upgrade MT4, new install of EA, etc. I am really confused as to what is wrong. I have contacted the programmer and Alpari support. Can someone spare some time and help me get it going again??

Regards,

David