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 ('ab4b9436938d9edb649bd22508aa5d6b', -1, 1714559531, 1714559531, '03881632', 21, 0)

Line : 158
File : sessions.php