Footer goes down when adding table in Page

Hi
Please help me

I downloaded Unltimate TinyMCE in order to be able to insert tables in pages
and so when I insert table I get the footer separated a lot

you have to scroll down to reach the footer

you can check it here
discountholidaycenter.com/bible-study-tour-1/

please help by finding a workaround if possible
thank you

You have incorrect HTML in your page. Use validator.w3.org/ to validate your page and fix errors.

I have corrected all errors but still I have the same problem
PLUS I use a plugin to create the table for me

do you have any suggestions please

That empty space is right column and what is strange there is bunch of commented code in it. If you did not need column right you could add this to template_css.css:

#column_right{
display:none!important;
}

or

#column_right{
height:auto!important;
}