Need to access php files by browser

Hello all!

I’m new in suitecrm, and face with many problems with php file like this:

So to resolve the problem like above, i need to access the web server where the files are stores.
Is it possible to access the files using only Google Chrome or i need some tools?

Thanks for respond!

Who provides your web server? They will need to have access to install extensions/software on the web server so will need SSH level access.