The loading bar is provided by the commercial theme you are using, Zerif Pro. I would recommend you to contact their support: https://themeisle.com/contact/ – questions about commercial products are not allowed here in the forum (https://wordpress.org/support/guidelines/#do-not-post-about-commercial-products)
It sounds like there could be an issue with the website’s server or a browser cache problem. Here are a few suggestions you can try:
1. **Clear your browser cache and cookies** – Sometimes outdated data can cause issues with loading.
2. **Try a different browser** – This can help identify if the problem is browser-specific.
3. **Disable extensions or plugins** – Certain extensions might interfere with loading.
4. **Check the website status** – Use a service like “Is It Down Right Now?” to see if the issue is on the server side.
5. **Restart your router or device** – It can help resolve network-related issues.
