Need more energy – Zombie HQ Review

The gameplay is amazing. It makes you want to keep doing more missions. However, after every mission some of the energy is gone so I wait until then. But when I opened the game after a long time, it stayed in the same amount of energy to start refilling. For example, I have a total of 7 energies. I did a mission worth 5 energies away. 2 hours later, when I opened the game, it still stayed as 2 energies and the refill time reset. Please fix it or improve it.
Review by Jcerv12345 on Zombie HQ.