my eM client does not open at all, I am so frustrated with it

my eM client does not open at all, I am so frustrated with it, it happened a few weeks ago, so I uninstalled it and reinstalled it back again, it started working well after that for a couple of weeks but it is not working again?! I can not open it? it does not open up, what to do?

try cleaning out your cookies and history and run run you anti virus program and try again