bbcode port QR code

I'm trying to port over my vbulletin qr code bbcode and its not working. Can someone get this to work? thanks

html replacment:

Code:

<img src="https://qrcode.kaywa.com/img.php?s=5&d=https%3A%2F%2F{param}" alt="qrcode" />

in xen when you scan image it will return as
Code:

https://{param}

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