Oh Fabiana,

There are small mistakes:

1. For header - remove top and bottom padding from settings, or use my Custom CSS:

#sp-header > .container {padding: 5px 20px;}

2. Upload smaller logo, reduce height to 90px (!) now you have 121px !!

https://prnt.sc/cnSoh1C4l7UR

I added the code but it does not correct it and if I make the logo smaller it is too small on the home page

Maybe

#sp-logo .sp-default-logo { max-height: 80px;}

then logo should fit

Your screenshot shows Tabs, not Site Header, wrong image! But anyway look up

It's still missing and if you notice the menu moves to the right I don't know why that happens I inserted a table in html using raw html

About Menu - to LEFT

#sp-menu > .sp-column { display: inline-flex;}
.sp-module.pull-right.educon-top-search {order: 2;}