AssertionError: Cannot load the "file" entity with NULL ID

Problem/Motivation

When attempting to delete a reaction vote type that does not have an image I get this error.
If the type has an image there is no error.

The website encountered an unexpected error. Please try again later.
AssertionError: Cannot load the "file" entity with NULL ID. in assert() (line 295 of core\lib\Drupal\Core\Entity\EntityStorageBase.php).
assert(, 'Cannot load the "file" entity with NULL ID.') (Line: 295)
Drupal\Core\Entity\EntityStorageBase->load(NULL) (Line: 488)
Drupal\Core\Entity\EntityBase::load(NULL) (Line: 181)
votingapi_reaction_entity_delete(Object, 'vote_type')
call_user_func_array('votingapi_reaction_entity_delete', Array) (Line: 403)
Drupal\Core\Extension\ModuleHandler->invokeAll('entity_delete', Array) (Line: 339)
Drupal\Core\Config\Entity\ConfigEntityStorage->invokeHook('delete', Object) (Line: 500)
Drupal\Core\Entity\EntityStorageBase->delete(Array) (Line: 347)
Drupal\Core\Entity\EntityBase->delete() (Line: 122)
Drupal\Core\Entity\EntityDeleteForm->submitForm(Array, Object)