Hello arrrvin,
your rank is too low for posting external links. So you must wait and rank up. Or you can purchase Express rank.
Express rankIt is a rank for those of you that want to post a bounty /airdrop / ANN or any other kind of post in which you need to include links.
Usually if you are active (posting, replying and online) for few days on the forum, you will be able to include links in your posts after few days.
But for those who are in a hurry, and want to quickly be able to do so, we are introducing the Express rank.
Look here if you want to have Express rank:
https://www.altcoinstalks.com/index.php?topic=146555.0Have a nice day