Make sure you have the latest browser (Edge/Chrome/IE or Mozilla Firefox)
2. Try using your browser in InPrivate/Incognito
3. Clear browser cache and cookies
4. Allow all cookies/third party cookies on your browser settings
5. Sign back in to your Microsoft Certification profile and try to update/schedule your exam.
Additionally, please ensure to contact your organization’s IT or the department that manages your company’s
please send them a psr ,(problem steps recorder)showing the steps from the time you sign in to your account up to the part where it shows the error code. I have initiated a private message where you can attach the PSR along with the requested information to assist you further.