Fixes fatal error on salesforce logger page

modules/salesforce_logger/src/Form/SettingsForm.php

@@ -59,7 +59,7 @@ class SettingsForm extends ConfigFormBase {
     $form['log_push_params_sanitized_fields'] = [
       '#title' => $this->t('Fields that must not be shown in logs'),
       '#type' => 'textarea',
-      '#default_value' => implode("\r\n", $config->get('log_push_params_sanitized_fields') ?? []),
+      '#default_value' => implode("\r\n", $config->get('log_push_params_sanitized_fields') ? $config->get('log_push_params_sanitized_fields') : []),
     ];
 
     $form['log_push_success'] = [