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Sorry, mistake. Edit this:

'It doesn't fit the mobile layout when it is to the right of the forum title and description.'

Please navigate to Dashboard > Forums > Settings > Styles and put this CSS code in Custom CSS Code textarea. Then save, delete all caches and do Ctrl+F5 on forum front-end.

#wpforo-wrap .wpf-head-bar-left {
    min-height: 85px;
}

Thanks, did this, but it's not moving.

Try this one, don't forget do all steps explained above:

@media screen and (max-width:480px) {
#wpforo-wrap .wpf-head-bar-right {
 float: none;
 padding: 0px 1px 0px 1px;
}
}

In most cases phone cache is hard to reset, so if you don't see result on your phone try it on other phone till your phone cache is rest.

Yup, I'm good.

Thanks!