"SSH shell execution failed: SSH key file not found" when performing Shell or Update

[m3tc0n]

Hi all, I have the same problem as described in the closed issue #267.

I have added my 3 nodes with each a SSH key to PVE Scripts Local and the connection succeeds. But when I want to enter the shell of another LXC to update, I get the message: [08:29:20] [START] Starting shell session for container 109...
[08:29:20] [ERROR] SSH shell execution failed: SSH key file not found.

What can I do?