Layered navigation block error showing

[mohith kumar]

Layered navigation block when click on edit button below here is show 

 

[PrestaShopException]

Selected categories value must be an array
at line 227 in file classes/helper/HelperTreeCategories.php

222.     }
223. 
224.     public function setSelectedCategories($value)
225.     {
226.         if (!is_array($value)) {
227.             throw new PrestaShopException('Selected categories value must be an array');
228.         }
229. 
230.         $this->_selected_categories = $value;
231.         return $this;
232.     }

• HelperTreeCategoriesCore->setSelectedCategories - [line 1607 - modules/blocklayered/blocklayered.php] - [1 Arguments]
• BlockLayered->getContent - [line 867 - controllers/admin/AdminModulesController.php]
• AdminModulesControllerCore->postProcessCallback - [line 1116 - controllers/admin/AdminModulesController.php]
• AdminModulesControllerCore->postProcess - [line 178 - classes/controller/Controller.php]
• ControllerCore->run - [line 367 - classes/Dispatcher.php]
• DispatcherCore->dispatch - [line 58 - admin/index.php]

[onishenko-andrei]

Выбранное значение категории должно быть массивом 
в строке 258 в классах файлов / helper / HelperTreeCategories.php

253.}