phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c8a4cdafa8f2b37bb96b8a7c9cd1a184' 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 ('c8a4cdafa8f2b37bb96b8a7c9cd1a184', -1, 1714048968, 1714048968, '12daa932', -4, 0, 0)

Line : 187
File : sessions.php