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 ('ef56700b053489fad9a9f71a8151c114', -1, 1713592208, 1713592208, '03922523', -4, 0, 0)

Line : 187
File : sessions.php