Hi @v1101 ,
Its the issue with your Experience Fragment Template. Check the page which experience fragment is using. You can remove context Hub lines from page if not required. There should be two files if you are not exploring much in XF .
1. customFooterLibs.html
2. customHeaderLibs.html
Also, Please check-in XF template structure that you have included any other component mistakenly in nodes or in properties.
You can also try to create XF in the existing project and compare the structure.
Happy Coding 🙂
~BK