Dear Merge Dragons! Community,

We are aware of the issue with the "Need Energy" popup which is triggered after almost every tap in the Dragon Missions feature.  
And we are also aware that it sometimes deducts gems even if it shows 0 gems.

But please don't worry; our support team is here to compensate you for your lost gems and we will fix this issue in our next version 9.3.0.

We apologize for the frustration that it has caused and thank you for your patience when waiting for the next release.

Merge Dragons! Support Team