Clear New Tab Giving Errors/ Not working

[amethy...@gmail.com]

Name of the extension/theme in question: 

Your problem/suggestion/question: 

Starting yesterday I've been getting this on new tab: 

An error occured.

Error code: 57 Type: TypeError Message: Cannot read property 'mode' of undefined

And this in settings: 

An error occured.

Error code: 148 Type: TypeError Message: Cannot read property 'allow_downloading_imgs_by_link' of undefined

[amethy...@gmail.com]

I've actually fixed it by uninstalling and reinstalling but I'm not sure what made it do that. All of a sudden it was borked.