Warning: assert(): Cannot load the "file" entity with NULL ID. failed in Drupal\Core\Entity\EntityStorageBase->load() (line 249 of core/lib/Drupal/Core/Entity/EntityStorageBase.php).
Warning: array_flip(): Can only flip STRING and INTEGER values! in Drupal\Core\Entity\EntityStorageBase->loadMultiple() (line 266 of core/lib/Drupal/Core/Entity/EntityStorageBase.php).
Notice: Undefined offset: 1 in Drupal\armonea_pricelist\Form\PriceCal->buildForm() (line 118 of modules/custom/armonea_pricelist/src/Form/PriceCal.php).
Notice: Undefined offset: 2 in Drupal\armonea_pricelist\Form\PriceCal->buildForm() (line 118 of modules/custom/armonea_pricelist/src/Form/PriceCal.php).
Notice: Undefined offset: 3 in Drupal\armonea_pricelist\Form\PriceCal->buildForm() (line 118 of modules/custom/armonea_pricelist/src/Form/PriceCal.php).
Notice: Undefined offset: 4 in Drupal\armonea_pricelist\Form\PriceCal->buildForm() (line 118 of modules/custom/armonea_pricelist/src/Form/PriceCal.php).
Notice: Undefined offset: 5 in Drupal\armonea_pricelist\Form\PriceCal->buildForm() (line 118 of modules/custom/armonea_pricelist/src/Form/PriceCal.php).
Notice: Undefined variable: fileUrl in Drupal\armonea_pricelist\Form\PriceCal->buildForm() (line 175 of modules/custom/armonea_pricelist/src/Form/PriceCal.php).