It happened to me,
especially the first few times, to open my Ionos wallet and see that the masternodes are missing.
Now I'll explain why you do not have to panic
The first thing to do is to verify that the server is turned on.
(it may happen that it is off for occasional maintenance or if you have not paid the fee)
subsequently,
if you have the possibility, you must check the status of the masternode.
For this you will need to access your server via SSH client or terminal and enter the following command:
ionos-cli masternode status
once the command is executed, if everything is working, it should return the following message:
if you get this answer then everything is fine, and you can exit the server.
it can happen that you get this answer
in this case you have to restart the masternode from the wallet
just click "Start Missing" button
remember that it may take some time for the wallet to give the correct information.
So you'd better wait a while ;D
(see the note)
For now, I have nothing more to add. If I've been helpful, help me continue :D:D:D
IOX: iKfabfhFqQD9ps1dM6jVqC8j3srwKidoM9
https://ionosproject.org/
https://github.com/IONOSProject/IONOS-Masternode-Guide
my vultr ref: https://www.vultr.com/?ref=7478695