Can you contact our support team if you are stuck on this quest? This might be an account specific bug. https://animationthrowdown.zendesk.com/hc/en-us/requests/new
U should say that invasion come at the begin of the 5th day, I didn't used fuel to finish to fix the cause I thought I had 1 more day... not fun ^^
Need a save and load option to not lose everything too
Can you contact our support team if you are stuck on this quest? This might be an account specific bug. https://animationthrowdown.zendesk.com/hc/en-us/requests/new