Hi @HMC Infotech ,
Welcome to Microsoft Q&A platform and thanks for using Azure Services.
As I understand from the question, you are getting Internal Server Error in East Asia, Japan and Australia East in Azure MySQL Flexible Server creation.
I have tried to create MySQL Flexible Server instance and was able to create one in East Asia:
Could you please retry if it works now? If not, please share more relevant details so that we may investigate the issue.
Thank you.