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 ('bb78eeacff42722eb2263e76ae571120', -1, 1714660935, 1714660935, '0390a174', -9, 0)

Line : 158
File : sessions.php