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 ('c9ce8b313b4a748451da9e0ed6125b40', -1, 1714392396, 1714392396, '0390711e', 4, 0)

Line : 158
File : sessions.php