Thank you for contacting us about a 500 error in PrestaShop. I recommend enabling error reporting in PrestaShop, as it may provide a more specific error message. Ensure you are using a version of the plugin that is compatible with your version of PrestaShop. If your problems persist, I recommend reaching out to the developers of JA Marketplace. Since it is commercial software they should provide some level of support.
Hello mauro,
Thank you for contacting us about a 500 error in PrestaShop. I recommend enabling error reporting in PrestaShop, as it may provide a more specific error message. Ensure you are using a version of the plugin that is compatible with your version of PrestaShop. If your problems persist, I recommend reaching out to the developers of JA Marketplace. Since it is commercial software they should provide some level of support.