All sorted, reply from my supplier below, thought I'd post it as it might help someone else,
Press Menu > Plugins > Xtream Editor,
Set Import to Disable
Press Green to save
Then Exit all
Now Press Menu > Setup > EPG > Load/Save/Delete > and Delete EPG
Then Exit all
Press Menu > Standby/Restart > Restart (not restart gui, just Restart)
When your box is back on
Press Menu > Plugins > Xtream Editor,
Set Import EPG to Enable
Press Green to save
Go back into Xtream Editor and Press Blue to Import EPG
it should start importing
Once finished importing check to see you have EPG Back.