I've never used zPanel so I'm not sure what's going on, I recommend asking in the zPanel Forums as you would have a better chance to get help there since most of them have used zPanel at some point and might know what the issue is. The zPanel docs may also be a good place to look.

Have you modified anything on your droplet that would cause that?

I haven't modified anything ... i was posting here first because i have been seeing zpanel issues pop up her and get answered quick than on the forums...will check on the forums

"I haven't modified anything..."

Perhaps some of the programs on your cloud server are due for an update, i.e.

sudo apt-get update && sudo apt-get -y upgrade && sudo apt-get -y dist-upgrade && sudo apt-get -y autoremove