Refactor old methods.

app/Support/CacheProperties.php

@@ -23,9 +23,8 @@ declare(strict_types=1);
 namespace FireflyIII\Support;
 
 use Cache;
-use Carbon\Carbon;
-use FireflyIII\Models\Category;
 use Illuminate\Support\Collection;
+use JsonException;
 
 /**
  * Class CacheProperties.
@@ -34,10 +33,8 @@ use Illuminate\Support\Collection;
  */
 class CacheProperties
 {
-    /** @var string */
-    protected $hash = '';
-    /** @var Collection */
-    protected $properties;
+    protected string     $hash = '';
+    protected Collection $properties;
 
     /**
      *
@@ -52,8 +49,7 @@ class CacheProperties
     }
 
     /**
-     * @param                                                                        $property
-     * @param Collection|Carbon|Category|array|int|string                            $property
+     * @param mixed $property
      */
     public function addProperty($property): void
     {
@@ -90,19 +86,24 @@ class CacheProperties
     }
 
     /**
+     * @throws JsonException
      */
     private function hash(): void
     {
         $content = '';
         foreach ($this->properties as $property) {
-            $content .= json_encode($property, JSON_THROW_ON_ERROR, 512);
+            try {
+                $content .= json_encode($property, JSON_THROW_ON_ERROR, 512);
+            } catch (JsonException $e) {
+                // @ignoreException
+                $content .= md5(time());
+            }
         }
         $this->hash = substr(hash('sha256', $content), 0, 16);
     }
 
     /**
-     * @param $data
-     * @param (array|mixed)[]|Collection|\Carbon\Carbon|string $data
+     * @param mixed $data
      */
     public function store($data): void
     {