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 ('f684e231484d6b6a392ec9fee75c596a', -1, 1747527646, 1747527646, '0387c8a8', 3, 0, 0)

Line : 190
File : sessions.php