Need cards to get approved

whitelisting
cards

#1

hello,
can anyone help me in this please?
everything is set; website coding side; here is one blog post

validator says: (WARN: Not whitelisted)

regards


#2

You have no valid twitter:card markup on your page. Additionally, there is no need to have your site approved unless you have a player card. Read this topic and all of the links inside it thoroughly.