Known issueFixUpdated · 3 replies on Steam
With Your Coworker: Temporary Fix for: "Failed to Claim Rewards Please Try Again in 1… (Workarounds)
Short answer
Suggested fix (unconfirmed): Exit and relaunch the game to claim your rewards. If that fails, hold your cursor down on the claim button for a few seconds before letting go.
The problem
Hey everyone, whoever's had this issue I found a temporary fix that worked for me: 1) Exit Application / Close Game 2) Relaunch and Claim.
Did this work for you?
Source: original Steam Community discussion. Quotes are shortened; all credit goes to the posters.