Server.exe issue

I'm trying to fix this issue i believe it's the reason some of my players are getting the infinite loading screen. does anyone know what this issue is and how to fix it?
http://i.is.cc/1awcVZNg.png < Here is the image

Another one.. Ffs learn to post in help section, and upload image to imgur or some shit. We cant see it untill it gets aproved bu mod.

i just seen that someone else posted with [help] as the forum desc and alright i'll post it with an image uploader