Wserver.exe keeps crashing!

So I got my server working (not online currently), but now whenever I open wserver.exe with admin after like 20 seconds it crashes! Please help D:

Just saying it crashes won't really help, You need to provide more information.

For example, Any Error that pops up before it crashes. What source you're using, What you've done to the source since you got it. What was changed from last time you ran the server fine.