Error while creating Custom Api endpoint address

After signing in to eval0000.admin.mashery.com/control-center/tasks

 

I go to >Api Definitions  > create> new manually 

 

after filling necessary things I click > Create your first resource endpoint     it says " ENTER YOUR CUSTOM API ENDPOINT ADDRESS "

and when I enter the address I want  , it gives the following error     " domain not whitelisted "  >> picture >>   https://imgur.com/a/ffTzy

 

what do I to

 

 

(1) Answer

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