Complex sentence: Failure in mission critical and even short time of outrage due to reputational damages can cause high price of downtime and longer period of downtime of mission critical system can result even more serious problems to the industries or organizations.
Split into simpler sentences: Failure in mission critical and even short time of outage can cause high price of downtime due to reputations damages. Longer periods of downtime of mission critical systems can result in even more serious problems to the industries or organizations.