CURIE

Something's really wrong with my Minecraft game. My horse, who had dissapeared for no reason, suddenly turned up where I left him, but untied. I tried to tie him/her back up, but the lead kept glitching out, so I tried quitting (with the horse right there in front of me) and starting again. When I came back, he/she was gone. Is there some kind of staff who I can contact? I'd prefer not to lose him/her and his/her armor and saddle.