I can't open the launcher with an error pops up

Here's the log

Arma 3 Launcher has encountered an unexpected error described below.
Sorry for the inconvenience.
Please report this on Arma 3 Feedback Tracker (http://feedback.arma3.com). Thanks to you we may fix the issue faster!

System information

Date: 2020-01-07 07:48:20 / 2020-01-07 15:48:20 +08
Current dir: D:\SteamLibrary\steamapps\common\Arma 3
AppData dir: C:\Users\OWNER\AppData\Local
Command line: "D:\SteamLibrary\steamapps\common\Arma 3\arma3launcher.exe"
Version: 1.5.146.96
CLR version: 4.0.30319.42000
OS Version: 10.0.18362.0 (Microsoft Windows NT 10.0.18362.0)
OS 64 bit: True
Process 64 bit: False
Personal dir: C:\Users\OWNER\Documents
Culture: zh-HK
UI Culture: zh-TW
Point of log: Unhandled Exception

Exception

System.IO.FileNotFoundException: 無法載入檔案或組件 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' 或其相依性的其中之一。 系統找不到指定的檔案。
File name: 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'

at Launcher.Program.RunLauncher()
at Launcher.Program.Main(String[] args)

警告: 組件繫結記錄切換為 OFF。
若要記錄組件繫結失敗，請將登錄值 [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) 設為 1。
注意: 與組件繫結失敗記錄相關的效能會有部分負面影響。
若要關閉此功能，請移除登錄值 [HKLM\Software\Microsoft\Fusion!EnableLog]。

Modules and assemblies

• mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll
• arma3launcher, Version=1.5.146.96, Culture=neutral, PublicKeyToken=null; D:\SteamLibrary\steamapps\common\Arma 3\arma3launcher.exe
• log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a; D:\SteamLibrary\steamapps\common\Arma 3\Launcher\log4net.dll

Assembly resolution

Resolving System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

requested by: unknown
not resolved