WP Greet Box Stopped Working — 3.3.1 Incompatibility??

Any chance of an update for this great plugin?? It suddenly stopped working on my site — not even “debug mode” works anymore! Or, rather, I should say that it doesn’t work like it’s supposed to…the WP Greet Box still pops up here and there, but not like how it’s supposed to, how it used to!

https://www.ads-software.com/extend/plugins/wp-greet-box/