I had a team site in which I created a custom list named “Custom”.
When I try to add a new item to the list I was getting the following error
“The server was unable to save the form at this time. Please
try again.”
I restarted the “SharePoint Search Host Controller” in
the windows service as suggested in the post http://www.peneveyre.com/blog/PermaLink,guid,eeacb91f-8cdb-49d1-a59a-59de40ffe18f.aspx.
I was able to add a new item successfully without any issues.