Ключевые слова: 404, abend, access denied, alert, browsing, business, businessman, casual, caution, communication, computer, dark, digital, digital device, disconnect, disconnected, error, error 404, failure, hardware failure, inaccesible, inaccessible, insomnia, internet, interrupted, laptop, man, monitor, network, network failure, office, online, online communication, online messaging, operation failed, page not found, pc, problem, program failure, screen, server breakdown, server malfunction, server problem, system crash, system halted, technology, virus, warning, website, workplace,