My store went down right after a deploy or update, what now?

Don’t make more changes, report it and we’ll bisect the bad change. Post-deploy breakage is the most common emergency we see: a Magento 503 from a stuck maintenance flag, Class … does not exist after di:compile, broken layout XML; a WordPress/WooCommerce white screen after a plugin update; a Shopify Liquid error after a theme push. We identify exactly which change broke it, roll it back cleanly, then ship a tested fix so you can re-deploy safely.