I was trying to add another adr plugin. I updated the network server .toml configuration file after adding the line adr_plugins = ["/home/frod57/my-new-mod"]
The network server fails to start and I’ve noticed the following error in the server logs:
03-21T16:58:24.574977028+01:00" level=fatal msg=“setup adr error: plugin rpc client error: fork/exec /home/frod57/my-new-mod: permission denied”
EDIT: issue solved. Bad path to mod used.