Fatal error: Uncaught TypeError: flock(): Argument #1 ($stream) must be of type resource, bool given in /var/www/html/system/library/cache/file.php:30
Stack trace:
#0 /var/www/html/system/library/cache/file.php(30): flock()
#1 /var/www/html/system/library/cache.php(41): Cache\File->get()
#2 /var/www/html/system/library/agoo/cache.php(170): Cache->get()
#3 /var/www/html/catalog/model/setting/store.php(4): agooCache->__call()
#4 /var/www/chemicalstorage/modification/system/engine/loader.php(275): ModelSettingStore->getStores()
#5 /var/www/html/system/engine/proxy.php(47): Loader->{closure}()
#6 /var/www/html/catalog/controller/record/langmark.php(48): Proxy->__call()
#7 /var/www/chemicalstorage/modification/system/engine/action.php(71): ControllerRecordLangmark->__construct()
#8 /var/www/chemicalstorage/modification/system/engine/loader.php(48): Action->execute()
#9 /var/www/html/system/library/agoo/loader.php(281): Loader->controller()
#10 /var/www/html/catalog/controller/extension/module/so_megamenu.php(74): agooLoader->__call()
#11 /var/www/chemicalstorage/modification/system/engine/action.php(79): ControllerExtensionModuleSomegamenu->index()
#12 /var/www/chemicalstorage/modification/system/engine/loader.php(48): Action->execute()
#13 /var/www/html/system/library/agoo/loader.php(281): Loader->controller()
#14 /var/www/chemicalstorage/modification/catalog/controller/common/header.php(220): agooLoader->__call()
#15 /var/www/chemicalstorage/modification/system/engine/action.php(79): ControllerCommonHeader->index()
#16 /var/www/chemicalstorage/modification/system/engine/loader.php(48): Action->execute()
#17 /var/www/html/system/library/agoo/loader.php(281): Loader->controller()
#18 /var/www/chemicalstorage/modification/catalog/controller/product/product.php(845): agooLoader->__call()
#19 /var/www/chemicalstorage/modification/system/engine/action.php(79): ControllerProductProduct->index()
#20 /var/www/html/catalog/controller/startup/router.php(25): Action->execute()
#21 /var/www/chemicalstorage/modification/system/engine/action.php(79): ControllerStartupRouter->index()
#22 /var/www/chemicalstorage/modification/system/engine/router.php(87): Action->execute()
#23 /var/www/chemicalstorage/modification/system/engine/router.php(76): Router->execute()
#24 /var/www/html/system/framework.php(169): Router->dispatch()
#25 /var/www/html/system/startup.php(104): require_once('...')
#26 /var/www/html/index.php(28): start()
#27 {main}
thrown in /var/www/html/system/library/cache/file.php on line 30