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 ('9cef79ed94a74c7de4a541ba4c802b2b', -1, 1714382126, 1714382126, '12778b68', -1, 0)

Line : 158
File : sessions.php