I found this error in my Event Logs:
And no, that was not all. The error was suppressed a couple of hundred times. Every 5 minutes I got an error like this:
How did I solve that? Well, not that easy, but I will give you a couple of possible solutions!
1. Check your .Net Versions
You can the script I found here.
2. Check the folder permissions
You will have to check the permissions of the folder where your search is supposed to be working. Use this script if you don't know where to look:
The local groups WSS_WPG and WSS_Admin_WPG need Full Control for that directory.
3. Search might be broken
Yeah, the Search is a little troublemaker sometimes. Just create a new search and be done with it.