Error starting daemon

I get next error when i set the variable EXTRA_FLAGS=" --block-producer-key /root/keys2/my-wallet2" in .mina-env
If not, daemon start normally.

I don’t know what’s the error.
Permissions to directory and files are checked and created with mina-generate Keypair tool.

Please, help.

It would be easier to assist on #mentor-nodes channel of the project Discord. But, as this is Docker my guess would be that you didn’t bind mount that directory to the same location in the container. Can you provide the full docker command you used?