Hi i have a mashichist friend - what is the story with this? can we say that this is possible that the rebbe has left us only physically? Is he bordering on heresy? or do we say that he is just misinformed (like satmar) but its not per se problematic

ב"ה Shalom I cannot speak for Chabad and the views of the mashichistim. What I can say is what I have learned from my Rabbis, and that is that the so called mashichistim are kosher G-d fearing Jews, however mistaken in some of their views. This does not make them heretics. Nonetheless, we all must careful in our service to Hashem that it is to Him alone who we worship. All the best