​
Overview

All exceptions thrown by the package implement \IndexZer0\EloquentFiltering\Contracts\EloquentFilteringException. How-ever it doesn’t harm to also catch \Throwable. 
try {
    Person::filter($filters)->get();
} catch (\IndexZer0\EloquentFiltering\Contracts\EloquentFilteringException $exception) {
    $exception->getMessage();
} catch (\Throwable $t) {
    // Shouldn't happen - but failsafe.
}

​
Exception Hierarchy

Exception (SPL)
└── ValidationException (Illuminate)
    ├── MalformedFilterFormatException (Suppressible)
    ├── RequiredFilterException (Not Suppressible)
└── InvalidArgumentException (SPL)
    ├── InvalidFiltersPayloadException (Not Suppressible)
    ├── InvalidModelFqcnException (Not Suppressible)
    ├── UnsupportedModifierException (Not Suppressible)
└── DeniedFilterException (Suppressible)
└── InvalidFilterException (Suppressible)
└── DuplicateFiltersException (Not Suppressible)
└── MissingFilterException (Suppressible)