You may want to look through your edit tag, so see if you have the NSFW symbol on it.
Then click the NSFW icon and say you would like to request a removal.
This has happened to many of my gifsets including very important ones like Black Panther, Love is Love, Anime(which is essentially trying to censor a whole culture), Wonder Woman (strong empowering woman make others coward I guess)
This is not okay, the censoring in and of itself is problematic. Make sure you check if your content is being censored and then send a message to Tumblr staff about the issue.