Class "JRequest" not found when confirming purchase with payment VM4/J4 ​

[jcgraphics]

Hello, I have Joomla 4 configured with Virtuemart 4.0.12 and another with 4.0.14, in both it gives me the same error, I can only select the Standard payment method, I have 3 payment methods configured, but when I select the payu option, or paypal appears the text of there is no payment method selected

I managed to solve the first error that was presented to me, but now when I select the payment method when clicking on confirm the purchase, a page with a purple background appears with the error

[Jumbo!]

Joomla 4 does not have the JRequest class. You must have an old plugin installed on your site incompatible with Joomla 4.

Go to Joomla Global Configuration, set "Error Reporting" as "Maximum", and enable "Debugging". Now you should see the file generating the error on the error page.