Accessibility issues with Aria

Hi all,

Still trying to create an accessible course. When I run the first page through Accessibility Insights, I'm getting the errors shown below. These seem like pretty based aria requirements - but if it's failing in my course, then my course isn't accessibility compliant. Is there a way to fix this?

aria-allowed-attr - FAILED:

Snippet
<div class="search" aria-label="search" tabindex="-1" style="position: absolute; left: 0px; top: 0px; overflow: hidden; transform-origin: center center; z-index: 3; width: 398px; height: 0px; transform: translate(0px, 0px);" data-tabindex="-1">
How to fix:
Fix the following:
ARIA attribute cannot be used, add a role attribute or use a different element: aria-label

FAILED

Path div[data-slide-title="Data\ Steward\ Course"] > .outline-states > .visitedIcon[aria-label="visited"]
Snippet
<span class="visitedIcon" aria-label="visited">
How to fix
Fix the following:
ARIA attribute cannot be used, add a role attribute or use a different element: aria-label

nested-interactive FAILED

Path #outline-tab
Snippet
<button id="outline-tab" class="tab cs-tabs cs-selected selected-animation-done" role="tab" aria-selected="true" aria-label="Menu" aria-controls="outline-panel" data-tabindex="0" tabindex="0" style="position: absolute; left: 0px; top: 0px; overflow: hidden; transform-origin: center center; cursor: pointer; width: 44px; height: 65px; transform: translate(20px, 0px); display: block;">
How to fix
Fix the following:
Element has focusable descendants

FAILED:

Path  #search-tab
Snippet
<button id="search-tab" class="tab cs-tabs " role="tab" aria-selected="false" aria-label="Search" aria-controls="search-panel" tabindex="-1" aria-expanded="false" style="position: absolute; left: 0px; top: 0px; overflow: hidden; transform-origin: center center; cursor: pointer; width: 17px; height: 65px; transform: translate(370px, 0px);" data-tabindex="-1">
How to fix
Fix the following:
Element has focusable descendants