Invalid startup nginx

after starting the nginx service, visiting the ip, page obtained through ip-a will not render the default html
ask how to solve the problem

Mar.16,2021

modify the ip accessed by the nginx.conf file upstream

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b36c30-2c052.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b36c30-2c052.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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