Quote Originally Posted by simon1066 View Post
Couple of thoughts,

Did you check for errors in the browser's console, as mentioned in the debug log?

I'll note that both WebPay and OPC are validated for > PHP 7.4 (higher than the version you're using)
I did check the console while going thru the whole checkout process. Unfortunately, i can't reproduce the error on my hand.

Not sure what my customers do to create the error at this point.

I am working on getting up to 7.4. MY other site (on same server) throws a tantrum when any higher than 7.3