Hello,
Your forum name would be "s_h_district_mipurkhas_pk", and you can also find and edit your forum name from this page when signed into your Dynadot account:
https://www.dynadot.com/account/info/settings.html
You would just need to scroll down to the 'Community Options' section of the page to find and edit the forum name.
Best regards,
Dynadot Support Team
What is my fourm name