Hello,
1) Issue with the mobile panel is related to your custom code in the child theme https://prnt.sc/1yix8sr I have improved the code to apply that for the single product only
2) Do you want to show this bar in addition to the text? https://prnt.sc/1yiz04l Provide us with FTP access to your site, please.
3) Provide screenshot of the issue because I don’t see problem https://prnt.sc/1yiy3z9
4) Added below code to child theme style.css. Check now.
.et-mini-content-opened .single-product .etheme-sticky-panel.outside {
opacity: 0;
visibility: hidden;
-webkit-transform: translateY(100%);
transform: translateY(100%);
}
Regards