Mac install issue. Can not find app icon in my application folder

Hi.
I have been used zwift on my iMac about one year but after clean install mac OS then I couldnt install zwift again.
I have tried over ten times from installer newly downloaded via the official site, but after installer say completed installation, I couldn’t find any zwift application icon in my application folder.

I would like to attach the install log in below. log says “Package Authoring Error”. it will be helpful if anyone has a good solution.
ps. I tried to contact support contact and waited 4 days but I only I receive robotic lazy answer from them, thanks.

instal log------------------
Feb 11 09:26:54 my computer nameInstaller[1053]: @(#)PROGRAM:Install PROJECT:Install-1000
Feb 11 09:26:54 my computer nameInstaller[1053]: @(#)PROGRAM:Installer PROJECT:Installer-934.2
Feb 11 09:26:54 my computer nameInstaller[1053]: Hardware: iMac16,2 @ 2.80 GHz (x 4), 16384 MB RAM
Feb 11 09:26:54 my computer nameInstaller[1053]: Running OS Build: Mac OS X 10.14.6 (18G3020)
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: _CF_USER_TEXT_ENCODING=0x1F5:0x1:0xE
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: TMPDIR=/var/folders/h
/f55xftfn7395s4q1nb_p6kw40000gn/T/
Feb 11 09:26:54 my computer nameInstaller1053]: Env: HOME=/Users/kumagaimitsuaki
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: SHELL=/bin/bash
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: Apple_PubSub_Socket_Render=/private/tmp/com.apple.launchd.G7Nhqa8PEi/Render
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: SSH_AUTH_SOCK=/private/tmp/com.apple.launchd.NGETJEQgW5/Listeners
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: PATH=/usr/bin:/bin:/usr/sbin:/sbin
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: LOGNAME=kumagaimitsuaki
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: XPC_SERVICE_NAME=com.apple.xpc.launchd.oneshot.0x10000013.Installer
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: COMMAND_MODE=unix2003
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: USER=kumagaimitsuaki
Feb 11 09:26:54 my computer nameInstaller[1053]: Env: XPC_FLAGS=0x0
Feb 11 09:26:54 my computer nameInstaller[1053]: Zwift Installation Log
Feb 11 09:26:54 my computer nameInstaller[1053]: Opened from: /Volumes/Zwift/ZwiftInstaller.pkg
Feb 11 09:26:54 my computer nameInstaller[1053]: Package Authoring Error: has an unsupported MIME type: image/data
Feb 11 09:26:54 my computer nameInstaller[1053]: Package Authoring Error: <background_scaling> has an unsupported MIME type: X-NSObject/NSNumber
Feb 11 09:26:54 my computer nameInstaller[1053]: Package Authoring Error: <background_alignment> has an unsupported MIME type: X-NSObject/NSNumber
Feb 11 09:26:54 my computer nameInstaller[1053]: Package Authoring Error: has an unsupported MIME type: X-NSObject/NSNumber
Feb 11 09:26:54 my computer name Installer[1053]: Product archive /Volumes/Zwift/ZwiftInstaller.pkg trustLevel=202
Feb 11 09:26:54 my computer nameInstaller[1053]: External component packages (1) trustLevel=202
Feb 11 09:27:00 my computer nameInstaller[1053]: InstallerStatusNotifications plugin loaded
Feb 11 09:27:21 my computer nameInstaller[1053]: ================================================================================