Hi mohamed,
Thank you for contacting the Microsoft Community.
I understand you're experiencing an unexpected error while rescheduling your exam, and I know how important this is for you. Allow me to guide you through the process.
To verify your profile, please provide the requested information in the private message I sent you.
Meanwhile, if you used an ESI or company discount, or if you are an ESI learner (part of an organization or company affiliated with the Enterprise Skills Initiative), you must contact the ESI support team for further assistance. Please note that they specialize in assisting all ESI learners with any issues they may have. I have provided their contact information in the private message I sent.
To ensure that the error you're encountering is not related to browser, please try following the basic troubleshooting provided below:
Close other tabs, extensions, and apps. Your computer may have run out of memory and can't load the site while also running your apps, extensions, and programs.
Clear the browser cache and cookies. Also, clear your browser history.
Allow all cookies/third party cookies on your browser settings.
If needed, you may also restart your computer or any device you're using. (It is recommended that you use your own device when scheduling an exam instead of using a work computer.)
For information on rescheduling your exam, please refer to the Reschedule and cancellation policies | Microsoft Learn.
Let me know if you have any questions about the information provided.
I look forward to your response. Please note that if no response is received after two business days, the case will be closed and locked. After the case is locked, we will no longer be able to respond, even through Private Messages. Thank you.
Best regards,