If you encounter an error and are unable to make a new purchase or modify the content of a subscription plan, please follow the instructions provided in the error message to input or operate accordingly. If following the instructions does not resolve the issue, please contact us via email at contact_sg@basefood.co.jp and provide details such as the device (PC, smartphone) and browser (Google Chrome, Safari, Microsoft Edge) you are using, a description of the issue, the error message, and screenshots of the error screen.