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 ('71e7d3003293ce2d14e8b075a7487931', -1, 1714664379, 1714664379, '0310937c', 2, 0)

Line : 158
File : sessions.php