As you can see when visiting this URL: http://thetvdb.com/api/694FAD89942D3827/series/78804/all/en.xml, the returned xml is invalid. Chrome gives the following error:
error on line 9590 at column 8: Opening and ending tag mismatch: Episode line 0 and Data
If you look closely at the xml, something is wrong writing episode 3x12 (id: 327381): it is not correctly closed (it does not even contain all its related data). And next episodes are then written right there, starting with episode 4x05 btw instead of 3x13.