phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9b4f8b0b04ca1a02b508498c3171ac71', -1, 1714518235, 1714518235, '038595a8', -2, 0, 0)

Line : 187
File : sessions.php