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 ('65d3123f6d1384088c572c40a79d3d05', -1, 1714539453, 1714539453, '0394665a', 21, 0)

Line : 158
File : sessions.php