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, session_admin) VALUES ('95c602ca7eb37b2ed0ae7c88fac35b39', -1, 1747652630, 1747652630, '12de3cf7', 2, 0, 0)

Line : 190
File : sessions.php