Error Message After Importing CDG

[Nitecat]

When I import a song into the playlist as a CDG, play the song, then go back to importing my CDGs as KMA files, I receive a message saying that Hoster has encountered an error and needs to close. I have been busily importing all of my CDGs and will soon be ready to use Hoster for my first show. I wanted to see how it worked to import a CDG into the playlist, like when a singer brings their own disc to a show. That part works fine, it's just when I go back to importing my CDGs as KMA files that I receive the error. Will I have this error during a show? Is there a setting I need to change or am I doing something wrong? Maybe this only occurs when I go back to importing KMA tracks, which I wouldn't be doing during a show. Has anyone else encountered this? Thanks.