All songs in my queue have disappeared along with my entire history.

First of all I’m using Djay Pro for Windows. I do a lot of prep work for my online gigs by adding a lot of songs to my queue and it gets quite long. They are always still there when I reopen Djay. Today I when I reopened the software my entire queue was gone. That was bad enough but when I went to my history folder all my set lists were gone as well. I record my sets outside of the software and use these to type out my set lists when I post to mixcloud. I have found where the metadata is stored but don’t know if there is a way to restore my queue and or history. Please help. This is devastating to me.