Error on UI -- UI will not open

When I right click the toolbar icon and select the UI, the UI does not open.
An error dialogue appears at the top right corner and the error is not fully visible.

Screen shot of top right: http://i.imgur.com/9xNpDE7.jpg

I am running Lubuntu and system is up to date:

-Version-
Kernel : Linux 3.13.0-46-generic (x86_64)
Compiled : #79-Ubuntu SMP Tue Mar 10 20:06:50 UTC 2015
C Library : Unknown
Default C Compiler : GNU C Compiler version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
Distribution : Ubuntu 14.04.2 LTS
-Current Session-
Computer Name : bob-desktop
User Name : bob (Bob H. Howell)
Home Directory : /home/bob
Desktop Environment : LXDE (Lubuntu)
-Misc-
Uptime : 6 days, 1 hour and 25 minutes
Load Average : 0.34, 0.61, 1.15

Identical issue here, same environment.
Issue also in logging, works only if forced.
Previous versions worked like a charm.

Hi Bob,

Please send your logs to support@insynchq.com for investigation. They are the files logs.db and out.txt in ~/.config/Insync. You can compress them before sending to save space.