the system worked normally before， but now below issue reported， need help， thanks
[Wed May 25 08:13:07 2022] falcon 154c0000.nvenc: firmware, attempted to load /lib/firmware/tegra18x/nvhost_nvenc061.fw, but failed with error -4
[Wed May 25 08:13:07 2022] falcon 154c0000.nvenc: Direct firmware load for tegra18x/nvhost_nvenc061.fw failed with error -4
[Wed May 25 08:13:07 2022] falcon 154c0000.nvenc: Falling back to user helper
[Wed May 25 08:13:07 2022] falcon 154c0000.nvenc: failed to get firmware
[Wed May 25 08:13:07 2022] falcon 154c0000.nvenc: failed to get firmware
[Wed May 25 08:13:07 2022] falcon 154c0000.nvenc: nvhost_flcn_init_sw: failed
[Wed May 25 08:13:07 2022] arm-smmu 12000000.iommu: Unhandled context fault: iova=0x00000000, fsynr=0x10001, cb=19, sid=7(0x7 - NVENC), pgd=0, pud=0, pmd=0, pte=0
[Wed May 25 08:13:07 2022] (255) csr_nvencsrd: EMEM address decode error
[Wed May 25 08:13:07 2022] status = 0x2032701c; addr = 0x3ffffffc0
[Wed May 25 08:13:07 2022] secure: yes, access-type: read
[Wed May 25 08:13:07 2022] unknown mcerr fault, int_status=0x00000000, ch_int_status=0x00000200, hubc_int_status=0x00000000
[Wed May 25 08:13:07 2022] unknown mcerr fault, int_status=0x00000000, ch_int_status=0x00000200, hubc_int_status=0x00000000
[Wed May 25 08:13:07 2022] unknown mcerr fault, int_status=0x00000000, ch_int_status=0x00000200, hubc_int_status=0x00000000
[Wed May 25 08:13:07 2022] mc-err: Too many MC errors; throttling prints