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 ('5525dd24f28e5b71a6780572b10b44dd', -1, 1747499212, 1747499212, '030f14dc', 31, 0, 0)

Line : 190
File : sessions.php