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 ('27d3df160450c481e9daa102f42e4464', -1, 1715195050, 1715195050, '0391240a', 0, 0, 0)

Line : 187
File : sessions.php