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 ('5be8308cb95d8aacaf11b61af59a1f2e', -1, 1714485503, 1714485503, '03916c09', 11, 0)

Line : 158
File : sessions.php