In the aaPanel's footer you should change
<a style="margin-left:20px;color:#20a53a;" href="http://www.aapanel.com/forum" target="_blank">For Support|Suggestions, please visit the aaPanel Forum</a>
to
<a style="margin-left:20px;color:#20a53a;" href="https://www.aapanel.com/forum" target="_blank">For Support|Suggestions, please visit the aaPanel Forum</a>
Here