Java 安装DialogOS won'；由于错误代码20，无法工作

今天早上我尝试安装DialogOS，但它总是显示此错误

An internal error occured (error code:20)
Log: C:\Users\verag\AppData\Local\Temp\i4j_nlog_12.log

以下是发布日志的摘录：

[0:768] Setting PATH C:\Users\verag\AppData\Local\Temp\e4jC3AB.tmp_dir1604922288\user;C:\Program Files\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine Components\iCLS\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Common Files\Autodesk Shared\;C:\Program Files (x86)\Autodesk\Backburner\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Users\verag\AppData\Local\Programs\Python\Python37-32;C:\Users\verag\AppData\Local\Programs\Python;C:\Studium\3.Semester\Python WS 2019_2020\GPT;C:\Program Files\Pip;C:\Program Files;C:\Users\verag\Anaconda3\Scripts;C:\Users\verag\AppData\Local\Microsoft\WindowsApps;C:\Users\verag\AppData\Local\Programs\Python\Python37-32;C:\Users\verag\AppData\Local\Programs\Python;C:\Studium\3.Semester\Python WS 2019_2020\GPT;;c:\program files\java\jdk-15\bin
[0:768] Trying c:\program files\java\jdk-15\bin\hotspot\jvm.dll (exists 0)
[0:768] Trying c:\program files\java\jdk-15\bin\client\jvm.dll (exists 0)
[0:772] Trying c:\program files\java\jdk-15\bin\server\jvm.dll (exists 1)
[0:777] Loading of JVM-DLL successful
[0:777] unpacking i4jruntime.jar.pack
[0:777] c:\program files\java\jdk-15\bin\..\bin\unpack200.exe
[0:777] -r "C:\Users\verag\AppData\Local\Temp\e4jC3AB.tmp_dir1604922288\i4jruntime.jar.pack" "C:\Users\verag\AppData\Local\Temp\e4jC3AB.tmp_dir1604922288\i4jruntime.jar"
[0:777] could not create unpack process

请帮帮我。我很迷路