Ender client error, heed help

[xxXZyzzXxx]

Can't play with ender client, I always get this error:

java.lang.NoClassDefFoundError: com/jogamp/opengl/awt/GLCanvas
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at haven.MainFrame.<init>(MainFrame.java:174)
at haven.MainFrame.main2(MainFrame.java:447)
at haven.MainFrame.lambda$main$0(MainFrame.java:486)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.jogamp.opengl.awt.GLCanvas
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 16 more

Windows 10
Java 8 Update 321
RTX 2060

Сan someone give some hints? I found only two topics with a similar error, no one in the community knows or has come across this.

[iamahh]

seems it's missing "jogamp" which is in "jogl-all-natives-windows-amd64.jar"(assuming windows)

are you using ender's updater? it would probably check library

otherwise try downloading jar and put in ender's lib folder:
https://jogamp.org/deployment/v2.3.2/ja ... -amd64.jar
https://jogamp.org/deployment/v2.3.2/ja ... s-i586.jar