I purchased Website Creator, websiteX5 evolution 9 about a month ago, created my website and uploaded it to my ftp site, it's not live yet as I wanted to test it before going live. I noticed the old files on the ftp site were .htm extensions versus .html created by my software. I trying to get an answer from the server host, but I thought I'd ask here, could this be the issue why my site doesn't work correctly ?? The the servr doesn't support .html or that the file extensions need to be .htm ?? If this is the case, is there a way I can make my files .htm instead of .html when the site it created? I've attached an error that I get on one of the page from my website, not sure it it will help...

Any assistance would be appreciated.