Thanks for following up @mrdaro!
I updated to GiveWP 2.21.1 and my issue was resolved.
I had a great experience with GiveWP support regarding this issue. They were on top of this issue and let me know when this update was in testing. Then, they followed up when it was published so I could update my site.
I have the same query error. When I attempt to make a donation (even in test mode), the form progress bar spins and spins without stopping. On the backend, I see the error in the log.
I went to older version on staging site and tested as I updated other plugins (Yoast, Elementor, Gravity Forms). No issues after each plugin update. After update to GiveWP 2.21.0, I can no longer complete donations.
I’m going to try to rollback the plugin.