That happened to me recently, and all I did was run the patcher (AnthemPatch in the RO folder), and problem resolved.
Try running the sakray, and anthempatch and see if the problem persists.
Edit: If that doesnt work; where are you connecting from? And probably try posting a pic. of your RO folder as well.
The reason I ask where you are connecting from is that, if you are in a school or public institution, there is a low chance it will work. (Hence I cant log in from my University's wireless because of the limited transmit rate.