Installation Period04安装错误：线程中出现异常；“主要”；java.lang.UnsatifiedLinkError

我刚刚在Ubuntu 20.04 LTS上成功安装了Period04。我从站点下载了“with Java”shell脚本，并顺利运行了它：

nick@nick-Swift-SF314-42:~$ bash period04-v1.2.0-JRE-linux.sh
    ------------------------------------------------------    
                     Period04 - Installer                     
    ------------------------------------------------------    
     Install Period04 in (default: /home/nick): 

     Create a link to the Period04 binary in ... 
     (default: /home/nick/bin): 
    ------------------------------------------------------    
     Installing Period04 ...
     Installation done. To start Period04 type 'period04'!

然而，当我键入period04开始时，我收到以下消息：

nick@nick-Swift-SF314-42:~$ period04
Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/nick/Period04/jre/lib/i386/xawt/libmawt.so: libXext.so.6: cannot open shared object file: No such file or directory
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.loadLibrary0(Unknown Source)
    at java.lang.System.loadLibrary(Unknown Source)
    at sun.security.action.LoadLibraryAction.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.awt.NativeLibLoader.loadLibraries(Unknown Source)
    at sun.awt.DebugHelper.<clinit>(Unknown Source)
    at java.awt.Component.<clinit>(Unknown Source)
    at Period04.main(Period04.java:87)

如果有人能帮助我，我将不胜感激。多谢各位

openjdk 11.0.10 2021-01-19
OpenJDK Runtime Environment (build 11.0.10+9-Ubuntu-0ubuntu1.20.04)
OpenJDK 64-Bit Server VM (build 11.0.10+9-Ubuntu-0ubuntu1.20.04, mixed mode, sharing)