I was working on Sharepoint 13 standalone server and suddenly found this error
"The Server was unable to save the form at this time. Please try again."
I was working on a simple list to add the data into it . The error was not allowing me to add the data into the simple share point list .Searching on internet I came to know that restarting the "Search Host Controller Service" would solve the issue .The ideology was it was eating lot of RAM and so it has to be restarted .But since I knew this issue, in our server "Search Host Controller Service" was already disabled long back ,since we were not working on search .
But some how i had to solve this issue since my share point 13 server was taking in any items.
So I decided to give a try and started "Search Host Controller Service" luckily it worked and I was able to add items to any list in the web application .