v1.3.9

Up until yesterday I had a fully functional and working Zec Cart. I had to update the db password in my configure.php files. Seemed to give me no issues, I can log into the admin area and everything works fine. Until I go to my Online Catalog and I get the following error message in my server log....

PHP Fatal error: require() [<a href='function.require'>function.require</a>]: Failed opening required 'DIR_WS_TEMPLATEStemplate_default/common/html_header.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/mysite/public_html/mystore/index.php on line 43
PHP Warning: require(DIR_WS_TEMPLATEStemplate_default/common/html_header.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in /home/mysite/public_html/mystore/index.php on line 43

Both index.php and html_header.php are in there proper dir's and have correct permissions. I have viewed both files and can find no errors. Any assistance would be appreciated.

Thank You in advance!