Hi AJ,
First, thanks for the screenshots, that never hurts.
That’s strange. I can’t reproduce it on either of my boxes. Did you use a league to select the teams for your tournament? Single or double elim? Consolation game?
I’d start here:
1. Create a new tournament with different teams. A small 4-team tournament is fine.
If you encounter the same error, let me know and:
2. Activate debug mode on your site (https://codex.wordpress.org/Debugging_in_WordPress) so notices, errors, and warnings will be saved to the debug.log file.
3. I’ll send you some diagnostic code that should tell us what’s up.
Thanks.
-Mark