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 ('28c67f7d67a4e851744a94ba46062ccc', -1, 1714674520, 1714674520, '030c47ed', 2, 0)

Line : 158
File : sessions.php