Is your ZC running on a Windows server or on an Apache server?

There's something funny about these statements:

Warning: main(D:/inetpub/fairhavenmemorial/ZenCart/includes/languages/english/meta_tags.php): failed to open stream: No such file or directory in D:\inetpub\fairhavenmemorial\ZenCart\admin\include s\languages\english.php on line 50
The forward slashes are for Unix/Linux type file systems, the back slashes are only for Windows file systems. Why are they mixed?

include_path='.;c:\php\pear'
Did you do your initial development on a Windows computer, and then upload to an Apache web server or other such Linux-type environment?

---Diana