There is a tool called Debugging Tool for Windows that is specifically designed for reading minidumps. Google and you can find it as well as how to set it up and use it.
In the reads it has section called Probable Cause. In your case it was the ser2pl.sys driver.
So I googled that and was able to pass on the information to you.
Sometimes it is simple, other times it takes more research and work, and there are those times it takes a much more experienced person than me to read and analyze them. There are several on this board that have deep knowledge and experience. I am just a novice.
It is something you may want to try. Two years ago I didn't have a clue how to do it let alone know what a minidump even was.