user(help)

I have a project that's about 5 years old that uses chartfx .net 6.2. My project has a bin folder where I store my dlls. That bin folder also has chartfx dll & xml files. I recently installed the original chartfx .net 6.2 on my new machine. But I'm receiving some type of license error. Could it be that I am receiving this error because my project is referencing the chartfx files in my bin folder and not from my machine that I recently installed chartfx? Or can this cause some sort of conflict that disallows me to not see the graph? Both my project's bin folder & machine reference the same versions so I would think that it should work. But it's not....Any suggestions why this could be?