I had the same problem. The /etc/wanpipe/global.conf file existed, with owner asterisk:asterisk, with content, with file permissions for both /etc/wanpipe/global.conf and /etc/wanpipe/ allowing the asterisk user to write, and with a timestamp indicating that /etc/wanpipe/global.conf is being written with each
The error message appeared on the dashboard as well as with
fwconsole notification --list invocation.
Clicking the “x” on the warning in the dashboard made the warning go away on both the dashboard and
fwconsole notification --list