Error access to Config Gateways 7.7.1

[hostingarg]

After updating from 7.6 to 7.7.1 , I see this error when trying to access the configuration of the payment gateways:

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WHMCS\Exception\Module\NotImplemented in /home/xxxxxxx/public_html/clientes/vendor/whmcs/whmcs-foundation/lib/Module/Gateway.php:0
Stack trace:
#0 /home/xxxxxxxxx/public_html/clientes/admin/configgateways.php(0): WHMCS\Module\Gateway->getConfiguration()
#1 {main}

 

Could someone help you solve this error?
I already opened support ticket to whmcs but I still had no answers.
The payment gateways apparently continue to work.

 

Thanks

Diego

 

[WHMCS John]

Hi @hostingarg,

This error indicates there is a plain php file in your /modules/gateways directory.

WHMCS expects payment gateway module files to be formatted in a certain way. So if that's not the case, you will experience this error.

 

Could you please ensure there are no customisations present in your /modules/gateways directory.

Once the issue is resolved you can add them back one-by-one until the problem begins again - at which point you have identified the troublesome customisation and can contact the vendor directly for assistance resolving the problem in their code.

 

Please do share the name of the gateway you determined to cause the problem.