The trap function was called with error code R1=0x6E5D8022, which has no description in firmware, so the function decided to report error code 0x6E5D8004 and save original error code to R1. R0 is a current thread descriptor, which looks like just a pointer to RAM.
I can't find 0x6E5D8022 in the firmware and this is strange, maybe it was generated like 0x6E5D8002 + 0x20.