I have been trying to make some changes to a tpl file for a shopping cart script (Prestashop), each time I made a change to a header.tpl file and uploaded the file back to the server, it would break the script and instead of getting a webpage in my browser, it displayed a blank page with no code in the source for the webpage. In order to fix the site/script I had to re-upload all files related to the script to the server. At first I had thought it was my code breaking the site or possibly notepad ++ or the encoding it was saving the file in, but I did an experiment, if I don't make any changes to the .tpl file and just upload the original .tpl file and overwrite the one on the server, it breaks the entire script. What in the world is going on here? Here are some details that may be helpful:
.tpl File: header.tpl
FTP Client: Filezilla
Default Transfer Type: Auto
Any help to resolve this issue would be appreciated.