Deivisson, did you have any luck?
I had the same issue while ugrading from 0.42.2 to 0.45.3.1, with 12.2.0.1.0 version of ojdbc8.jar.
I tried with the 19.18.0.0 version of ojdbc8.jar and now we are facing the error "ORA-00604: error occurred at recursive SQL level 1 ORA-01756: quoted string not properly terminated".
We've noticed that the error occurs right after scheduled alerts are triggered.