CAN-Bus sheild int fail on any Arduino except Seeeduino

:question: Hi.
I use Arduino Mega2560 and CAN BUS shield.
Initialization failed. I don’t know why?

About SPI in pins_arduino.h :
static const uint8_t SS = 53;
static const uint8_t MOSI = 51;
static const uint8_t MISO = 50;
static const uint8_t SCK = 52;
oll correct

Chip select pin in mcp_can_dfs.h
#define SPICS 10
same as Arduino UNO

What else??? :nerd: