phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3404138ba00b2dd0b2aab5d0709554bc' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('3404138ba00b2dd0b2aab5d0709554bc', -1, 1766361002, 1766361002, 'd849d8aa', 4, 0, 0)

Line : 215
File : sessions.php