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 ('7ce2bfc707b1db2fbc4e7c260ee1fb87', -1, 1749438117, 1749438117, 'd849d874', 14, 0, 0)

Line : 190
File : sessions.php