Plenty of these to go around...here are 3...
Error Saving Player: An unexpected error occurred inside the Player.IO webservice. Please try again. - Reference code: e120ebe3 [636426245261261968-1]
Error Saving Player: An unexpected error occurred inside the Player.IO webservice. Please try again. - Reference code: e120ebe3 [636426189150388746-1]
Error Saving Player: An unexpected error occurred inside the Player.IO webservice. Please try again. - Reference code: e120ebe3 [636426061390492031-1]
Sometimes these issues are causing some havoc with account consistency. I've even had issues with purchases not going through, and I believe these are related.