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 ('25e07ba3d1b1e460ec8a209e2c9953de', -1, 1714631199, 1714631199, '0395fe23', -8, 0)

Line : 158
File : sessions.php