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 ('22ab7f4d2b0870c8fe04d5ddfd997612', -1, 1714472007, 1714472007, '0390fb48', -9, 0)

Line : 158
File : sessions.php