Setting a static IP address was failed

Question

The error messages shown in the attached image were displayed after a trial:

As you may assume, I've already set a static IP address on 50-cloud-init.yaml file. My settings are as follows:

This file is generated from information provided by the datasource. Changes to it will not persist across an instance. To disable cloud-init's network configuration capabilities, write a file /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following: network: {config: disabled}

network:
    ethernets:
        enp0s3:
            addresses: [192.168.0.101/24]
            gateway4: 192.168.1.1
            nameservers:
                    addresses: [192.168.1.1,8.8.8.8]
            dhcp4: no
    version: 2

And of course, I made the above changes take effect by running the following command: sudo netplan apply

SI there any solution you can provide? Please advise!