I tried using the hashtag #bitcoin and it is working, I don't think that Facebook has the problem with the bitcoin maybe it is only a temporary one, and maybe because of your location and besides there are still many crypto pages that are still working so I don't think that Facebook has an issue with the bitcoin.

Btw, can you tell us what was that research that you need to do, can you give some ideas for us? I'm just curious lol. Just check it tomorrow hoping that it will work.

I also do, hoping that he will update us if things are working again for that hashtag in their area. I wonder why facebook limits only specific aread for using that hashtag