Dear customer,
Please disable Payza payment gateway in plugin, as Payza is not functional anymore.
As you can find on their homepage http://payza.com/ , Payza has been shut down by US Federals for working with unlicensed money and probably money laundering.

More details:
https://www.justice.gov/usao-dc/victim-witness-assistance/obopay-payza

At the moment there is no payment provider for adult payments anymore.

Few months ago i already asked to add ccbill

All the links to payza are also down i see