It's the right place to ask
Deep Island is maintained mostly by two people - Diafero and Old Wolle, but they seldom check the forum here due to being busy with real life. Usually the server should be fairly stable (haven't been on DI in a while, though). If the issue persists today, the server might benefit from being restarted or something - it seems that's usually required with multiplayer Uru. Don't hesitate to send an email to Diafero (his email address is <diafero AT arcor DOT de>) to get his attention. He does answer his emails rather fast and likes being notified when there is a problem with DI.