I compiled the relevant files with gulp. Why did, github pages report an error after uploading to git?

I compiled my scss file with gulp, which can be uploaded to github, but, github pages shows 404?
the query is shown in the picture: because it is a rookie, please give me an explanation?

clipboard.png
githubnode_modules

clipboard.png

Gulp github-pages javascript
Mar.03,2021

1. node_modules do not upload
2. You can create a .gitignore in the root directory, ignoring unnecessary uploads

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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-64f5-1b34a0a-2b77f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b34a0a-2b77f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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