Problem with the EA

 

Hi, I am new here and I have aproblem with the expert advisor and I don't know how to solve it because yesterday it worked but today it don't and I don't know why I hace reinstall it but I haven't resolved the problem.

The problem is when I start the EA the screen show a message that metatrater is waiting an upgrade but this message don't change. I associated an image to this post with the problem