Catch jobtype load exception

Please don't catch bare `except:`, please catch `Exception as e` instead and log `e`

https://docs.python.org/2/howto/doanddont.html#except

```
Because except: catches all exceptions, including SystemExit, KeyboardInterrupt, 
and GeneratorExit (which is not an error and should not normally be caught
by user code), using a bare except: is almost never a good idea.
```