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 ('4d86d37be4dbaa2140d0432e91441cc4', -1, 1714664700, 1714664700, '03101dd1', -9, 0)

Line : 158
File : sessions.php