If you have installed a custom payment plugin for Magento 2 and the credit card form is not showing up in checkout, there are a few things you can check to troubleshoot the issue:
- Check that the payment plugin is enabled and configured correctly in the Magento 2 admin panel. Make sure that the plugin is enabled and that the settings are configured properly, including any required API keys or other credentials.
- Verify that the payment method is available for the current store view and customer group. In the Magento 2 admin panel, go to Stores > Configuration > Sales > Payment Methods and check that the payment method is enabled and that the availability settings are configured correctly.
- Check that the payment plugin code is functioning properly. If you are using a custom payment plugin, check the code to ensure that it is properly integrated with the Magento 2 checkout process and that it is correctly displaying the credit card form. You can also check the Magento 2 logs for any errors or issues related to the payment plugin.
- Ensure that the custom payment plugin is compatible with your Magento 2 version. Make sure that the plugin is compatible with the version of Magento 2 that you are using, and that any required dependencies are installed and configured correctly.
If none of these steps resolve the issue, you may need to consult with a Magento developer or the support team for the custom payment plugin to identify and resolve the issue.