Adult tumblr blocked robots

Hello,
I have some NSFW tumblr. mostly just to place link on the description. and i have problem with 1 of my tumblr.
when i type my tumblr on google i found this :
A description for this result is not available because of this site's robots.txt
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i've trying to visit that tumblr site and redirect to : https://www.tumblr.com/safe-mode?url=
This Tumblr may contain
sensitive…

Adult tumblr blocked robots