internal error, please report: running "ngrok" failed: cannot find installed snap "ngrok" at revision 29: missing file /snap/ngrok/29/meta/snap.yaml code example

Example: internal error, please report: running "ngrok" failed: cannot find installed snap "ngrok" at revision 29: missing file /snap/ngrok/29/meta/snap.yaml

internal error, please report: running "ngrok" failed: cannot find installed snap "ngrok" at revision xx: missing file /snap/ngrok/29/meta/snap.yaml
the service isn't started: 
systemctl start snap-ngrok-29.mount