ErrorException: Undefined index: dateField

[GKFX]

https://sentry.io/organizations/camdram-webteam/issues/963958179/?project=1273126&referrer=github_plugin

ErrorException: Undefined index: dateField
  File "src/Acts/CamdramBundle/Service/SlugHandler.php", line 49, in handleError
    if (isset($changeSet[$this->options['dateField']])) {
  File "src/Acts/CamdramBundle/Service/SlugHandler.php", line 49, in onChangeDecision
    if (isset($changeSet[$this->options['dateField']])) {
  File "src/Acts/CamdramBundle/Controller/AbstractRestController.php", line 186, in putAction
    $em->flush();
  File "web/app.php", line 28
    $response = $kernel->handle($request);
...
(15 additional frame(s) were not displayed)