- Issue created by @hmdnawaz
When the labels are empty and you visit admin/config/system/mailjet/signup-settings/labels?entity-id=mailjet_subscription_form_379866_902875, you will see these warnings
Warning: Undefined property: Drupal\mailjet_subscription\Entity\SubscriptionForm::$email_label in Drupal\mailjet_subscription\Form\MailjetSubscriptionLabelsForm->buildForm() (line 53 of modules/contrib/mailjet/modules/mailjet_subscription/src/Form/MailjetSubscriptionLabelsForm.php).
Warning: Undefined property: Drupal\mailjet_subscription\Entity\SubscriptionForm::$labels_fields in Drupal\mailjet_subscription\Form\MailjetSubscriptionLabelsForm->buildForm() (line 58 of modules/contrib/mailjet/modules/mailjet_subscription/src/Form/MailjetSubscriptionLabelsForm.php).
Deprecated function: explode(): Passing null to parameter #2 ($string) of type string is deprecated in Drupal\mailjet_subscription\Form\MailjetSubscriptionLabelsForm->buildForm() (line 58 of modules/contrib/mailjet/modules/mailjet_subscription/src/Form/MailjetSubscriptionLabelsForm.php).
Enable mailjet and mailjet_subscription module. Add a subscription form, then edit it and click on 'Edit labels'.
Add an empty check before accessing an array index or entity property.
Active
4.0
Code