This is an issue we're aware of and are currently working on a fix for. Please let me know if you are able to find any workarounds - hopefully we can get it back to normal soon!
Tip: make sure your computer is running the daemon during boot and that another app is not blocking it.
P.P.S. A current workaround we have is reinstallation, which is working for many people.
Here is a set of instructions on how to correctly uninstall Videostream/programs from your computer: https://computer.howstuffworks.com/macs/how-to-uninstall-on-mac.htm
Once you've done that, you can go back to the app here: Download
You'll have to completely uninstall / remove the app first using the instructions above!
Hopefully this solves your problem!
Cheers!