Woocommerce Payfast loading issue

Hi there

So I installed wp version 5.5 and when I test my site and go through to the payment section it allows me to put in all my details but when I need to select a payment option e.g payfast or eft, it just shows the loading icon (delay in loading), so I am unable to select a payment option. What concerns me is that I am loosing customers and orders due to this. I have installed the Import Export Customizer settings plugin, in the hopes of resolving the issue and it did not resolve it. My woo commerce payfast gateway shows the following:”Warning: This plugin has not been tested with your current version of WordPress.” I did not realise this issue at the time and do a backup of my site every 3rd day, so I cannot go back to a previous version of wp.

I would really appreciate any assistance with regards to this because I have no clue how to resolve this issue.

Thanks