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 ('c0491b84007bce3c2c545871481ef161', -1, 1713551578, 1713551578, '12bf9dba', -1, 0, 0)

Line : 187
File : sessions.php