Woopsie. An error..

Error:
javax.servlet.jsp.JspException: INSERT INTO redirect ( id, plugin_id, datecreated, ip, sessionid ) VALUES ( 0, ?, CURRENT_TIMESTAMP, ?, ? ) : Duplicate key or integrity constraint violation message from server: "Duplicate entry '8388607' for key 1"

(The complete stacktrace can be found in the html source)