If you experience issues after installing the Payment Methods by Product plugin, deactivate other plugins temporarily to see if a conflict arises. Reactivate them one by one to pinpoint the potential culprit.
Compatibility issues
While the plugin is generally compatible with most themes and plugins, there might be unforeseen conflicts. Check the plugin documentation or contact the developer for known compatibility issues or solutions.
WordPress errors
If you encounter error messages on your dashboard or storefront after installing the plugin, consult the WordPress error logs for more specific information about the problem. You can search online for solutions related to the specific error code.