Thanks, guys, for the confirmations.
I just didn't understand the "Share above target" message and thought it was an error causing some rejection.
I just have not seen that message before mining anything else in the past (BTC, ETH, DigiByte, ..., etc.) and just didn't know if I had everything configured properly.
Since it's solo mining and finding a block is unlikely anyway, I could not tell if it was actually mining.
I really do appreciate the help!