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 ('5df531d60a00b513e665e259263ad602', -1, 1714324856, 1714324856, '0d3b52a7', -4, 0)

Line : 158
File : sessions.php