private function removeFromCache($original)
    {
        $cacheKey = $this->getCacheKey($original);
        $cacheContent = $this->cache->fetch($this->getCacheKey($original));
        if (is_array($cacheContent) && isset($cacheContent[$original])) {
            unset($cacheContent[$original]);
            $this->cache->save($cacheKey, $cacheContent);
        }
    }