I get a Library not registered error line 43 char 12. How do I fix this?

Greetings and WELCOME to the site, jmcarthur27!

I moved your question out of Introductions to this forum topic area so that it will be more likely to be noticed and addressed by those who are best able to answer it. Your question will get noticed much more here.

Introductions is for people to introduce themselves only, and we try to not ask questions there. We would appreciate it if you would return to Introductions sometime to tell us a little bit about yourself, if you would be willing to do that.

Thanks!