about two sets Arduino + MCP2515 CAN module communication

I used two sets of Arduino+MCP2515 CAN module to do the CAN communication test.

INT——D2
SCK——D13
SI——D11
SO——D12
CS——D9
GND——GND
VCC——5V

two NCP2515:

H——H
L——L

Used sketch : Sender and Receiver works fine, the sketch: Sender_A and Receiver_A not work, the Sender_A stopped at "Can't init CAN" without error, what can be?

I searched there were some posts relative to but seems non go through a finial solution.

All sketch attached.

sender.ino (733 Bytes)

receiver.ino (1.36 KB)

Sender_A.ino (1.68 KB)

Receiver_A.ino (1.8 KB)