Bootcamp Partition No Longer Mounted

I have a very similar problem to what was discussed in this forum: Boot Camp Partition not mounting. I had Sierra, and Bootcamp was working fine. While I had Sierra, I used a tool called MiniTool Partition Wizard to resize my bootcamp disk without deleting Windows, and that worked fine. However, I just upgraded to High Sierra, and now my Bootcamp disk is not mounted, and it has been renamed to "disk0s3" as shown in the figure below. I tried to follow the steps in the post I mentioned earlier, but I think my problem is different enough such that those steps don't quite do it. Any suggestions? Thank you.