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 ('dbf7008792f72281303e22f56fc6d2ee', -1, 1714341064, 1714341064, '0391696c', 17, 0)

Line : 158
File : sessions.php