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 ('258193a00a9c67a4f198ac8c9dc7adf9', -1, 1713930219, 1713930219, '0390e996', -4, 0, 0)

Line : 187
File : sessions.php