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 ('810f88f6e529c03ea7b25dd3f8b2e51b', -1, 1714643993, 1714643993, '12776b60', -4, 0)

Line : 158
File : sessions.php