Multiple errors

I installed this plugin and keep getting this errors

First one I am getting is that the featured image could not be saved:
https://www.evernote.com/shard/s214/sh/790ab6d8-2b07-4533-80a1-e971f60af2b5/c1203abd4ef7d316cc862e5105791128/deep/0/Fullscreen-12-10-14,-3-07-PM.png

Then I am also getting on the app post, “this item is no longer available”
https://www.evernote.com/shard/s214/sh/3512807f-5168-4466-bec6-7732b63dcb4f/38251f3ae0db342daed7958bb16f6afe/deep/0/Fullscreen-12-10-14,-3-09-PM.png

You can see example here:
http://gaspriceapps.com/2014/12/10/fuelzee-find-cheap-gas-prices-and-zipcar-fuel-rewards/

https://wordpress.org/plugins/app-store-assistant/