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 ('87d9d81d34e66b690c824ab2a8ce48e4', -1, 1714708380, 1714708380, '038113fb', -2, 0)

Line : 158
File : sessions.php