nginx server after crash not able to access file [closed]

I have nodejs and reactjs project on nginx server in this server both project working well but suddenly all pm2 process are deleted now i have restart all thing and i am accessing file from react public folder previous it will work but after crash i am able to acccess previous file but not newly added i have also check that file permision which has 777 i am accessing like this

i have done this things:
restart nginx server
restart all pm2 process
reboot server
check permission for all file and also try to give 777 permission

so old file are access but newly added file after crash are not able to access