phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a8b686f8bee7031a36e338fbd3f64cdb' for key 'PRIMARY'

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a8b686f8bee7031a36e338fbd3f64cdb', -1, 1714400018, 1714400018, '0389aab7', 20, 0, 0)

Line : 187
File : sessions.php