error code hcnetsdk.dll[29]

Hi, I have DS-7204HGHI-SH with 4 cameras. I upgraded the firmware to the latest today, from: V3.3.2build 151204 to: V3.1.18build 180130 Did I installed a correct firmware? From: http://hikvisionusa.com/Techsupport/firmware/DVR/DZ_K32_ML_STD_V3.1.18_180130_HC.zip Since that, I have some...