Hi there!

Thanks for your query.

Please use the following code in your custom CSS:

.modal-backdrop.fade.show {
    z-index: 99;
}

Note: Path towards custom CSS(Joomla 4): System>Site Templates Styles> Click on your current default template name then choose Template Options. Then find custom CSS within the custom code.

https://prnt.sc/5mBuSRh907N3

https://prnt.sc/ooiq-lkMEXr_

https://prnt.sc/nunlX-f5AhK1

Hope this will solve the issue for you!

Best Regards

Hello, I posted the code but it doesn't work

Hi,

Please use important after the code then. Where did you put the code?

.modal-backdrop.fade.show {
    z-index: 99 !important;
}

Let me know if it helps!

Best Regards

HelloRashida Rahman

It still doesn't work to log in?.

Sorry to hear that.

Can I have your admin access to check, please?