Check your map_athena, char_athena, login_athena and, most important, inter_athena Inter_athena makes the connection between char/map servers
Double check those and paste then here if u need more help
(i believe it's just misconfig XD)
Also, the problem with the DDOs warning is because your server is trying to connect several times, and as it fails it try again, and again, and again... So it's like it's receiving attacks