Something has broken the registration system. All events now fail with an error once an email address is entered in the registration form (see screenshot of error). Ticket submitted but dead in the water until resolved. Running DT Reg 4.2.4. Maybe it was a mistake to upgrade to that?!? Anyone else experiencing this issue or has in that past and have a fix?? Thanks!
EDIT 8/17/19, 0138 AST: I have had to roll back DT Register to 3.2.3 for now, just so, hopefully, some registrations can come through. 3.2.4 has some bug(s) that prevent anyone from registering if we run 3.2.4.