We, as DMs, have limitless control over the worlds we create with our players, but the real world is a completely different story. Sometimes it can be hard to get a group of people with different schedules together to play, but every now and then the really world will really hit someone in your group hard. Hard enough that it’s going to change how your group has to play. As DMs, not only do we have to be great storytellers and gamers, we also have to have skill with people management. When a players issue changes your game, here are some things you can do.
Talk to them. Make sure they understand these changes aren’t their fault. Let them know they aren’t a pariah or anything stupid like that. These changes are for the betterment of the group, not to make someone feel alienated.
Get their input. Get them to talk about the solution they’d come up with. Letting them help will make them feel less like it’s their fault. Their solution will both make the group see their helping and make them feel like their helping, and at this time, it’s all about helping.
Don’t stop your game. Maybe you need to take a quick break or something, but DO NOT stop playing. This is probably the worst thing you can do. Do what it takes to keep your game going. The game might be just as important to your player who’s having the problem as it is to you. Who knows, you game might even help them feel better.