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any help identifying the error will be highly appreciated.

on magento admin I getting the following error message when trying to access the payment methods. "Fatal error: Call to a member function isSandbox() on a non-object in Block/System/Config/Forms/Checkbox.php on line 13"

Here is the code for Checkbox.php:

class Paguelofacil_Pagocash_Block_System_Config_Forms_Checkbox extends Mage_Adminhtml_Block_System_Config_Form_Field
{
    protected function _getElementHtml(Varien_Data_Form_Element_Abstract $element)
    {
        $cvalue = Mage::getModel('Gateway/Config_Settings')->isSandbox();
        $checkActive = (Mage::getModel('Gateway/Config_Settings')->isSandbox()==1)?'checked':'';
        $html = "
        <input type='hidden' value='".$cvalue."' id='payment_Pagocash_sandbox' name='groups[Gateway][fields][sandbox][value]'>
       <input type='checkbox' class='select' onclick='pagueloFacilChange(this)' ".$checkActive."> Habilitado PagoCash Sandbox
       <script type='text/javascript'>
            function pfpagoCashChange(currentElement)
            {
                document.getElementById('payment_Pagocash_sandbox').value = (currentElement.checked)?1:0;
            }
       </script>
       ";
        //}

        return $html;
    }
}
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  • This model Mage::getModel('Gateway/Config_Settings') is not part of magento core. Please post config.xml of the related module.
    – sv3n
    May 18, 2017 at 13:33

1 Answer 1

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The method Mage::getModel('Gateway/Config_Settings') is returning null, meaning that Magento cannot resolve Gateway/Config_Settings to a Magento model.

Now it's been a while since I've worked with Magento 1, but my best guess is that your configuration path is incorrect (don't know if it's case-sensitive, so you could try gateway/config_settings, or that there is no such class in the module that is providing the gateway-namespace (typical path should be Vendor/Module/Model/Config/Settings.php).

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