I have spotted another problem with the Joomla 3X upgrade from yesterday - DT Register gets hammered as well...
It looks like we will need to upgrade DT Register to resolve this. Vicki can you check this out and see what our best route is to resolve this...
http://www.dthdevelopment.com/
Here is the Bear Website DT Register error...
https://www.bearwebdesign.com/support/class-registration
Cheers,
Peter