stan errors

app/Modules/SberPaymentOrder/Nova/Resources/Concerns/SberPaymentOrderFieldsForIndex.php

@@ -17,6 +17,9 @@ class SberPaymentOrderFieldsForIndex
 {
     /**
      * Loan Order fields for "create"
+     *
+     * @param  NovaSberPaymentOrder  $resource
+     * @return array<int, \Laravel\Nova\Fields\Field>
      */
     public static function make(NovaSberPaymentOrder $resource): array
     {
@@ -56,7 +59,10 @@ class SberPaymentOrderFieldsForIndex
                 ->sortable(),
 
             Text::make(sprintf('%s (%s)', __('Paid'), __('This month')), function () use ($resource) {
-                return static::paidField($resource, $resource->filter_month);
+                return static::paidField(
+                    $resource,
+                    $resource->offsetExists('filter_month') ? $resource->offsetGet('filter_month') : null
+                );
             }),
         ];
     }