Fatal error: Uncaught TypeError: mb_substr(): Argument #3 ($length) must be of type ?int, string given in /home/u823947579/domains/dev.smartkomfort.pl/public_html/system/helper/utf8.php:21 Stack trace: #0 /home/u823947579/domains/dev.smartkomfort.pl/public_html/system/helper/utf8.php(21): mb_substr() #1 /home/u823947579/domains/dev.smartkomfort.pl/public_html/catalog/controller/product/manufacturer.php(191): utf8_substr() #2 /home/u823947579/domains/dev.smartkomfort.pl/storage/modification/system/engine/action.php(79): ControllerProductManufacturer->info() #3 /home/u823947579/domains/dev.smartkomfort.pl/public_html/catalog/controller/startup/router.php(27): Action->execute() #4 /home/u823947579/domains/dev.smartkomfort.pl/storage/modification/system/engine/action.php(79): ControllerStartupRouter->index() #5 /home/u823947579/domains/dev.smartkomfort.pl/storage/modification/system/engine/router.php(77): Action->execute() #6 /home/u823947579/domains/dev.smartkomfort.pl/storage/modification/system/engine/router.php(66): Router->execute() #7 /home/u823947579/domains/dev.smartkomfort.pl/public_html/system/framework.php(179): Router->dispatch() #8 /home/u823947579/domains/dev.smartkomfort.pl/public_html/system/startup.php(104): require_once('/home/u82394757...') #9 /home/u823947579/domains/dev.smartkomfort.pl/public_html/index.php(19): start() #10 {main} thrown in /home/u823947579/domains/dev.smartkomfort.pl/public_html/system/helper/utf8.php on line 21