There is something wrong with the template that is causing the error.
as a work around, open the page in an external text editor and change the following line:
<html class=""><!-- InstanceBegin template="/Templates/vvsmsomain5.dwt.php" codeOutsideHTMLIsLocked="false" -->
to:
<html class="">
save the page, then reopen it in DW and add the repeat selection.
once the repeat selection has been added, open it in the external text editor again and change that line back to:
<html class=""><!-- InstanceBegin template="/Templates/vvsmsomain5.dwt.php" codeOutsideHTMLIsLocked="false" -->