Jenkins level 4 chained builds task -do i need to specify chown, chmod for index.html? or user access?

i did this task and it seems to work fine, but i get this error msg. how does the checker check and what it checks for?

on my side it works fine - the gitea commit triggers the webhook and the webhook triggers jenkins job1 and job2(manage-services) and i do see new updated text on app tab.

however i still get error that it does not run on app server 1.

what does it check for? i do see the updated text ‘welcome to xfusion corp industries!’ on the app tab after i commit this text - all the things get triggered!

pls help