Platform, device version and operating system:
PC/Steam
Screenshot or image:
When starting up the game today I got these messages (see screenshot)
When opening tasks it says I already received those rewards in another guild…
I don’t know where this is coming from since I’m guild master for over 6 years from the same guild.
It is a known bug whether real or just artificial I cannot tell. I suggest you to open a support ticket so that they can check.
(Artificial => you might have received the rewards although it says differently)
Hits quite a few players each week. Sometimes it’s just an incorrect mail, sometimes you are really missing rewards. Open a support ticket (https://gemsofwar.zendesk.com/hc/en-us/requests/new, issue type “missing rewards or game content”) to get your account checked.
This just happened to me as well.
To someone in our guild family as well.
Hi Mixah! 
Edit: More people as the day goes on. Up to at least 3 in one guild alone.
Just happened to me. Has never happened before.
+1 here (and at least 2 others in my guild)
I’m on Android, though, as is at least one other.
Hey everyone!
The development team has been made aware of this issue and are currently investigating the cause. If anyone does experience this issue please contact are Support Team here; https://gemsofwar.zendesk.com/hc/en-us/requests/new
OminousGMan - Support Human 
This occurred to me as well this AM
