ERR_BLOCKED_BY_CLIENT means something on your browser, like an extension, is...

https://emilioezho292.theglensecret.com/why-does-my-content-blocker-break-checkout-pages

ERR_BLOCKED_BY_CLIENT means something on your browser, like an extension, is blocking a website from loading. To fix it, try opening the site in private mode first. If it works, check your browser extensions