Fatal error: Uncaught TypeError: Unsupported operand types: string - int in C:\www-home\www\shop\lib\VM\Categories\Category.class.php:134 Stack trace: #0 C:\www-home\www\shop\index.php(345): VM\Categories\Category->getProducts(Array, 'register', false, 'price', '0', '100000') #1 [internal function]: {closure}('fr', 'register') #2 C:\www-home\www\shop\vendor\slim\slim\Slim\Route.php(468): call_user_func_array(Object(Closure), Array) #3 C:\www-home\www\shop\vendor\slim\slim\Slim\Slim.php(1355): Slim\Route->dispatch() #4 C:\www-home\www\shop\vendor\slim\slim\Slim\Middleware\Flash.php(85): Slim\Slim->call() #5 C:\www-home\www\shop\vendor\slim\slim\Slim\Middleware\MethodOverride.php(92): Slim\Middleware\Flash->call() #6 C:\www-home\www\shop\vendor\slim\slim\Slim\Middleware\PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call() #7 C:\www-home\www\shop\vendor\slim\slim\Slim\Slim.php(1300): Slim\Middleware\PrettyExceptions->call() #8 C:\www-home\www\shop\index.php(1807): Slim\Slim->run() #9 {main} thrown in C:\www-home\www\shop\lib\VM\Categories\Category.class.php on line 134