[TASK] Broaden catch statement for FAL related Exceptions

This change modifies the "uncaught Exception" prevention in the overridden FormEngine, thus protecting against many more types of possible errors. Which are all subclassed Exceptions of the same type of Exception.

Fixes: #187
Merge pull request #221 from NamelessCoder/wideload

[TASK] Broaden catch statement for FAL related Exceptions
Merge pull request #223 from NamelessCoder/duckandcover

[TASK] Cleanup and test coverage increase