One thing you could try is to delete the app data, as it may be damaged.
Paste each of these paths into the Finder’s Go ▸ Go to Folder… menu command to reveal them, then move them to the Trash:
- /Users/dejal/Library/Containers/869A6A7B-0CF6-4A88-9B7D-63F13A17D7C4
- /Users/dejal/Library/Group Containers/group.com.newsblur.NewsBlur-Group
Try opening NewsBlur after that, and see if it still crashes.