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) VALUES ('7beb7cb6bb4dd2e32ee7dc5d5a315b72', -1, 1714354478, 1714354478, '0391b2f0', -10, 0)

Line : 158
File : sessions.php