Is there a mistake in your schematic? MISO and MOSI are NC

[DeflateAwning]

I would expect that MISO and MOSI need to be connected for this system to work.

[stkdiretto]

That is correct. The schematics of the board appear to be correct, as opposed to the circuit diagram.

Connections are:

Arduino	RFM95
GND	GND
5	DIO0
6	DIO1
7	DIO2
10	NSS
11	MOSI
12	MISO
13	SCK
A0	RST
VCC	3V3
GND	GND