Fantastical not working!

This app won’t install. After downloading, the .dmg runs ok. But, when you click on the app (in applications folder), it says “Fantastical is damaged, and can’t be opened. You should move it to the trash.”
Please help, when I installed this (2.2) version, it replaced my working, older version, and now I am stuck without calendar. I even tried searching on here for an older version, but had the same result as with this version.


Have you checked your security settings and made sure Allow apps from Anywhere is selected?

Like here: