I could not install Client on my Mac

The Log is as follows.
What should I do to install ?

2020-10-26 00:40:39 INFO :VirtualHere Client 5.0.8 starting (Compiled: Oct 3 2020 11:48:57)
2020-10-26 00:40:39 INFO :Client OS is macOS Mojave Version 10.14.6 (Build 18G6020)
2020-10-26 00:40:39 INFO :Using config at /Users/ryu/Library/Preferences/vhui Preferences
2020-10-26 00:40:39 INFO :IPC available at /tmp/vhclient
2020-10-26 00:40:39 INFO :Auto-find using Bonjour - on
2020-10-26 00:40:39 INFO :Auto-find using Bonjour SSL - on
2020-10-26 00:41:37 INFO :No drivers installed, I am installing new ones...
2020-10-26 00:41:39 INFO :Using OSX 10.9+ driver
2020-10-26 00:42:23 INFO :Installed driver is now version
2020-10-26 00:42:23 ERROR :IOIteratorNext = 0. com_virtualhere_vhhcd is not correctly registered in the kernel, please reboot and try again

#3

Hi Michael,
Thank you for your fast reply.
I cannot remember the message asking to approve the kext.
Whatever this, I will try according to your helpful advice.

#4

Dear Michael,
I tried, but same error occurred.
I found USB device on server, and driver installation started after clicking an icon of USB device.
But the error occurred and installer says "The VirtualHere Client drivers could not be loaded".
I succeeded to install the client to Windows PC, But I want to use client on Mac.
Do you have any advice ?