Dahua NVR Update Failed - Should I be worried about this error message?

I have a DH-NVR5216-4KS2 that I bought back in 2017 from Andy, along with 8 x Dahua IPC cameras of various types.

All cameras are on the IPC-HX5X3X-Rhea_MultiLang_PN_Stream3_V2.800.0000013.0.R.191202 firmware (so latest, I believe).

I decided to update the NVR to the DH_NVR5XXX-4KS2_MultiLang_V4.001.0000003.2.R.201010 firmware (it was on: DH_NVR5XXX-4KS2_Eng_V3.215.0000000.3.R.20171211, so a little behind latest V3.216....)

Anyway, during the update clearly something went wrong and I...

Dahua NVR Update Failed - Should I be worried about this error message?