Weird Wrike Notifications

I keep getting this weird notification on my Mac screen every time: 

"Software from "Wrike, Inc." added items that can run in the background. You can manage this in Login Items Settings." 

When I go to my settings, I see this block and it isn't even toggled on! Another annoying thing is, I uninstalled Wrike almost two years ago! This creepy thing is freaking me out. I've been trying to get help for the past three days and nobody from the customer service or anywhere is responding. How do I fix this?