Lost Colony 1 Queen

Not sure what happened but over that last couple weeks, numbers were reducing and I hadn't seen queen. As I checked on Sunday I planned on checking today to be sure. No eggs or fresh larvae. Bummed, but that's just nature I guess. I felt I've done everything I could do, and the other colony is doing well. So, I've ordered a new queen, however they are sold, out so maybe other people are having similar issues. Hopefully I'll get mine on Thursday. Hoping it won't be too late for the colony itself.