Last block incomplete in decryption.

While accessing Copado Objects like Promotions, Deployments or Org credentials, an error "Last block incomplete in decryption" can be seen.
Below is the full error:

last block incomplete in decryption
An unexpected error has occurred. Your solution provider has been notified. (System)

Go to Account Summary. 
Click on API key tab. 
Click on Create/Reset button.

How did we do?