Ok, I checked with a friend (another kong login) and it turns out that the issue of logging is linked to a specific account Kongregate ... so it's not the Internet, the browser cache and the like. Another theory (and I hope that it concerns me): When a server crash characters in the Sunken stuck and will be available after its re-opening. Let us hope for.
 "Eternal Saga"){kind=icon}
 "Mythic Saga"){kind=icon}