What is this "exclamation mark" doing here ?

[vostro]

 
what does it means ?

take a look at the screenshot:

[Fcasoli]

I think the synchronization failed after the last one at 8:17. Maybe you lost connectivity for some reason or the server is not available to access... Try again manually. I found this recurring problem with Juice Defender, in past. I removed it. There is a beautiful comment by Kostya about my case.


___________________________

Galaxy Note 3 - Note 3 Neo