Lay out problems with components

Hi, I installed 2 different components (mysites=catalogue and RSForms), both components mess up the lay out of the template (they add a white background) and I get the following error message
Undefined variable: showlogo in /Applications/MAMP/htdocs/BONSAI/templates/hot_blocks/index.php on line 134

Could you help me on this.

what are that two components modules, plugins... How do you put them on page?

component = mysites
component = RSForms Pro
component = acymailing

I put them on the page via menu-item
for example:
RSForms
Menu -> new menu item
Menu Item Type= Form
and chose the form that I want to show on the page.

See
klant12.2trees.be/BONSAI/index.php/stel-een-vraag
and
klant12.2trees.be/BONSAI/index.php?option=com_acymailing

I see they are not responsive ?

RSform is responsive now, problem still exists.
see
klant12.2trees.be/BONSAI/index.php/stel-een-vraag

Open layout.css, find this:

.responsive_header {
height: 620px !important;
}

change 620 to 680