Hi William,
After running few test, I finally figure out why i'm getting the "app error 200".
I reckon is Firmware ver that i use was not really stable after many software that i have installed and remove on my device.

What i done is wipe my device and start from a clean OS and installed V1.4 and upgrade to V1.5 and is all work fine.

Sorry it was my mistake.

Tested all feature and work perfect on V1.5


Good App!