I have the exact same problem. For my case, it is I log in via Google+.
A TimThumb error has occured
The following error(s) occured:
The file you specified is <= 0 bytes.
Query String : src=%2Fuploads%2Fuserpro%2F2146%2F545ee4f7068ac.jpg&w=64&h=64&a=t&q=100
TimThumb version : 2.8.14
I am on the latest version and do exactly everything and no help….PLEASE HELP!