All Droplets after Snapshot blocks Port 22 london location

Hi, I am using Apache 16.04 with Ispconfig. Every time i do a Snapshot with the following steps

shutdown -h now and then i wait for couple of seconds and then i start doing the snapshot from the digitalocean Control panel . after doing that i power on my droplet from the control panel .

After that i get this issue

1. cant ssh into the server get ssh: connect to host my-ip-address port 22: Connection refused
2. site is down on the browser also i get " This site can’t be reached "
3. Ip is down on the browser

What is the issue over here . after the snapshot does it block all my ports This have happened with 4 of my droplets in this month ( MARCH ) so i had to destroy and Install everything back again. Its time consuming. when i contact the support they put my droplet in recovery mode .

Kindly Please help me figure this issue .

Thanks