My card is not showing on twitter. Preview works fine but while i twitt its not working

[AOpenxcell]

my link is : http://52.44.183.30/api/Main/deepLinking?userId=RGSvACMuGj&city=Lisbon

This is the summary card.

[andypiper]

You need to use a proper DNS address, not an IP address.

[system]

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