I see this message in the plugin. Does this help to troubleshoot?
The products were working before.
“The new version of the Stripe Payments plugin has the SCA compliant API support. However, you’re still using the legacy API.
Click here to check whether your business needs to support Strong Customer Authentication (SCA). If it does, disable legacy API by unchecking the “Enable Legacy Checkout API” checkbox in the Advanced Settings tab of the plugin.
Don’t show this message again”