Cannot link Cryptonite to Dropbox "Decrypt Dropbox Folder" not active

What steps will reproduce the problem?
1.try to "Link with Dropbox"
2.
3.

What is the expected output? to see "Decrypt Dropbox Folder" button active and 
selectable

What do you see instead? "Decrypt Dropbox Folder" greyed out / not selectable

What version of the product are you using? Cryptonite 0.7.6

On what operating system? Android version 4.2.2 (LG Nexus 4) Not Rooted

Please provide any additional information below.
app was working fine a while back
updated multiple time dropbox and cryptonite without using the apps
today trying to decrypt my dropbox folder, it gives error that it failed "check 
password or folder permission" tried multiple time with same error

troubleshooting done:
1 uninstalled both dropbox and cryptonite
2 unliked device (Nexus 4) from dropbox
3 unliked cryptonite from web dropbox account settings/my apps
4 reinstalled both apps dropbox and cryptonite
5 opened dropbox and signed in, linked my device (I can browse my folders) and 
all other apps on phone can browse dropbox folders
6 opened cryptonite, press "link with Dropbox" I gave full dropbox access 
(allow) to cryptonite
7 checked dropbox web account settings/my apps and I see cryptonite full 
dropbox access

button "Decrypt Dropbox folder" is greyed out and not active

attachments:
screenshot1 : after I allow cryptonite full dropbox access
screenshot2 : after linking cryptonite to the dropbox folder

Original issue reported on code.google.com by 825...@gmail.com on 9 Jun 2013 at 1:06

Attachments:

MD14 / cryptonite

Cannot link Cryptonite to Dropbox "Decrypt Dropbox Folder" not active #56