phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '88fe34dc44273dcf147c504fb4bfefcb' 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 ('88fe34dc44273dcf147c504fb4bfefcb', -1, 1764012106, 1764012106, 'd849d82b', -4, 0, 0)

Line : 187
File : sessions.php