MySQL server has gone away

Error with code 2006 in '/home/p/pravtozp/recaro-russia.ru/public_html/wa-system/database/waDbMysqliAdapter.class.php' around line 281:

   276	        }
   277	    }
   278	
   279	    protected function exception()
   280	    {
 >>281	        throw new waDbException($this->error(), $this->errorCode());
   282	    }
   283	    
   284	}

Call stack

#0 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/database/waDbMysqliAdapter.class.php(275): waDbMysqliAdapter->exception()
#1 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/database/waDbAdapter.class.php(119): waDbMysqliAdapter->createTable('shop_abtest', Array)
#2 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/database/waModel.class.php(1031): waDbAdapter->createSchema(Array)
#3 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/config/waAppConfig.class.php(372): waModel->createSchema(Array)
#4 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/config/waAppConfig.class.php(278): waAppConfig->install()
#5 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/waSystem.class.php(94): waAppConfig->checkUpdates()
#6 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/routing/waRouting.class.php(295): waSystem::getInstance('shop', NULL, true)
#7 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/routing/waRouting.class.php(213): waRouting->getAppRoutes('shop', Array, true)
#8 /home/p/pravtozp/recaro-russia.ru/public_html/wa-system/waSystem.class.php(543): waRouting->dispatch()
#9 /home/p/pravtozp/recaro-russia.ru/public_html/index.php(9): waSystem->dispatch()
#10 {main}

Request

array (
)

Params

array (
  'app' => 'shop',
  '_name' => 'Каталог',
  'theme' => 'recaro_kids',
  'theme_mobile' => 'recaro_kids',
  'locale' => 'ru_RU',
  'title' => '',
  'meta_keywords' => '',
  'meta_description' => '',
  'og_title' => '',
  'og_image' => '',
  'og_video' => '',
  'og_description' => '',
  'og_type' => '',
  'url_type' => '1',
  'type_id' => '0',
  'currency' => 'RUB',
  'payment_id' => '0',
  'shipping_id' => '0',
)