A new error I have found while testing CAN communication is within the ESP32SJA1000.cpp source code, where Arduino IDE is unable to recognize the "esp_intr.h" reference. Supposedly another library was updated and changed the functionality, because yesterday I ran the same unaltered code using this CAN library and it worked perfectly. The error message was as followed:

c:\Users\Windows 10\Documents\Arduino\libraries\CAN\src\ESP32SJA1000.cpp:6:10: fatal error: esp_intr.h: No such file or directory
6 | #include "esp_intr.h"
| ^~~~~~~~~~~~
compilation terminated.
exit status 1

Compilation error: exit status 1