Ha Ha. We were getting a traffic spike through this, which caused the issue. But Bubble has this feature where you can add more "units" to your overall app capacity to handle increased traffic, which we did. Enjoy!
"Finally, we want to make sure you feel secure about building on the Bubble platform, so, although we plan to be around for a very long time, here's our guarantee: if we ever for some reason have to close down shop, we will release the Bubble source code under an open-source license so that you can set up your own Bubble server and keep your app running."