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Hi, I'm asking for help. The whmcs were set up and when I go to the payment gateways I get this error attached text and photo



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WHMCS\Exception\Module\NotImplemented in /var/www/vhosts/nnvserver.com/httpdocs/vendor/whmcs/whmcs-foundation/lib/Module/Gateway.php:0
Stack trace:
#0 /var/www/vhosts/nnvserver.com/httpdocs/admin/configgateways.php(0): WHMCS\Module\Gateway->getConfiguration()
#1 {main}

bandicam 2019-02-07 14-37-37-796.jpg

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Do you have a custom gateway module?  If so, it seems it does not have the _config() function  that is required. 

If you do not have a custom gateway module, you may need to contact WHMCS support for further help.  One solution might be to move the files under modules/gateways  to a temp location.  Just move them one at a time until the page displays the gateway page. 

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@nigealix it looks like you have a custom or old payment gateway module causing an issue, i'd recommend renaming your current gateways folder old_gateways and then upload a fresh copy of the /gateways/ folder into your /modules/ folder.  Once done add your custom modules back in one-by-one refreshing the payment gateway page to identify the custom module causing issues and then reaching out to the developer to resolve the compatibility issue you are facing.

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