This has happened to me before today but I struggled to find the best way to get in touch with the devs. 

Latest iOS 

Basically I complete all the daily challenges but am unable to collect the reward for that day meaning I am unable to progress towards the monthly sacred Shard. 

I am a loyal player with a lot of time and money spent. Please can you fix and compensate. 

I have an associated screenshot and can send via email if you wish.

WTR: not collect the ‘energy’ reward from the daily quests for about 10 minutes, complete all challenges, then collect all rewards, you should now be unable to complete the final daily reward. Leaving you stuck for the weekly, monthly etc.

Please contact me if you need more info.

Joe