Default Weird error message

I keep getting a popup that says "Device Lost". Which I just took a screen shot of as I was writing this. Does anyone know how to fix this and what's causing it?

Sent from my LG-D850 using XDA Premium 4 mobile app
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iPhone 3GS
iPad 1
iPhone 4
Samsung Galaxy S3 (Blue)
Kindle Fire
Samsung Note 3 (Black)
LG G-Pad 8.3 (White)
LG G3 F400S (Black)

Lg G3 D850 (Black)
LG G3 F460S (Gold)
Nexus 7 (2013) (Black)