Hi @evian260. Welcome to GoDaddy Community! This could be a network error. I would suggest searching online for more information on ERR_EMPTY_RESPONSE and look for network troubleshooting suggestions. If you determine that this isn't related to a network issue, then you may want to reach out to our support team so they can make sure there are no issues with your account.
JesseW - GoDaddy | Community Manager | 24/7 support available at x.co/247support | Remember to choose a solution and give kudos.