Hello,
Please do not use code like this
.vc_column-inner {
padding-top:0px;
}
on mobile the gap created by margin-bottom of this row http://prntscr.com/hzgbv2
so you need to add a custom class (because of it is a bad practice to write code for default VC classes, like vc_column-inner, without using your custom class) for this row and write css code to make margin-bottom = 0.
If you provide me wp-admin access in Private Content I can help you with this, because of the previous credentials are incorrect now.
Regards