XML-RPC Error (404): Unknown error

Hi,

I edited an a k2 item on my site, I generally used to copy texts from word and paste them in the editor, when I tried to delete the code which is added to the actual info I pasted it failed to save and this is the error message I am getting. (XML-RPC Error (404): Unknown error)

Can you please assist?

Joomdle does not integrate wirh K2, so the error must come from somewhere else.
Enable debugging in moodle to get more info.