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 ('c6d4bcf508e9a3f91e0f4e7b30ea6b84', -1, 1713963724, 1713963724, '0390d491', -4, 0, 0)

Line : 187
File : sessions.php