Update killed my Dashlane!!!

I just updated my Dashlane and now it doesn’t work at all…I can’t even open it! I get this message, "“Dashlane” is damaged and can’t be opened. Delete “Dashlane” and download it again from the App Store.” Unfortunately, I can’t delete it nor reinstall it; it won’t let me. HELP!!!!

LisaL76 about Dashlane - Password Manager, v4.6.6