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 ('607fb5347e995f75171852b938b863bb', -1, 1714088220, 1714088220, '127620d5', -10, 0, 0)

Line : 187
File : sessions.php