phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c5e9ff2f6d350009d69e8179a735d11b' 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 ('c5e9ff2f6d350009d69e8179a735d11b', -1, 1711701351, 1711701351, '22c94516', -7, 0, 0)

Line : 187
File : sessions.php