Notification issue

It’s been more than a year but this app is never responding to the notifications it sends. Whenever you click on notification it says there is some error.

i get regular grapevine post notifications on iphone lockscreen , when i tap and open it doesnt redirect to the post mentioned in notification. Why are these poking me to read the one which i couldnt find. solution ?!

Whenever Grapevine is opened via notification, the whole ui seems to scale up.

Steps I took:

• Grapevine app in background
• Tap on notification to launch app