phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('616526bc43e51e641518180c074c2ba8', -1, 1714199372, 1714199372, '0389aab7', 21, 0)

Line : 158
File : sessions.php