I am getting below certificate errors after installing the Jmeter Plugins. please check and let me know, if I miss anything.
java.lang.SecurityException: class "org.bouncycastle.asn1.DERBoolean"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.preDefineClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_251]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_251]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_251]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_251]
at org.apache.jorphan.reflect.ClassFinder$ExtendsClassFilter.isChildOf(ClassFinder.java:102) ~[jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder$ExtendsClassFilter.accept(ClassFinder.java:88) ~[jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.applyFiltering(ClassFinder.java:438) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClassesInOnePath(ClassFinder.java:398) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClasses(ClassFinder.java:328) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClassesThatExtend(ClassFinder.java:301) [jorphan.jar:5.3]
at org.apache.jmeter.gui.action.ActionRouter.findClassesThatExtend(ActionRouter.java:314) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.gui.action.ActionRouter.populateCommandMap(ActionRouter.java:350) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.JMeter.startGui(JMeter.java:395) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.JMeter.start(JMeter.java:547) [ApacheJMeter_core.jar:5.3]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_251]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_251]
at org.apache.jmeter.NewDriver.main(NewDriver.java:252) [ApacheJMeter.jar:5.3]
2020-06-15 08:30:52,729 ERROR o.a.j.r.ClassFinder: Error filtering class org.bouncycastle.asn1.pkcs.PBES2Algorithms, it will be ignored
java.lang.SecurityException: class "org.bouncycastle.asn1.pkcs.PBES2Algorithms"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.preDefineClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_251]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_251]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_251]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_251]
at org.apache.jorphan.reflect.ClassFinder$ExtendsClassFilter.isChildOf(ClassFinder.java:102) ~[jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder$ExtendsClassFilter.accept(ClassFinder.java:88) ~[jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.applyFiltering(ClassFinder.java:438) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClassesInOnePath(ClassFinder.java:398) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClasses(ClassFinder.java:328) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClassesThatExtend(ClassFinder.java:301) [jorphan.jar:5.3]
at org.apache.jmeter.gui.action.ActionRouter.findClassesThatExtend(ActionRouter.java:314) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.gui.action.ActionRouter.populateCommandMap(ActionRouter.java:350) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.JMeter.startGui(JMeter.java:395) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.JMeter.start(JMeter.java:547) [ApacheJMeter_core.jar:5.3]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_251]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_251]
at org.apache.jmeter.NewDriver.main(NewDriver.java:252) [ApacheJMeter.jar:5.3]
2020-06-15 08:30:52,915 ERROR o.a.j.r.ClassFinder: Error filtering class org.bouncycastle.crypto.tls.AlwaysValidVerifyer, it will be ignored
java.lang.SecurityException: class "org.bouncycastle.crypto.tls.AlwaysValidVerifyer"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.preDefineClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_251]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_251]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_251]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_251]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_251]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_251]
at org.apache.jorphan.reflect.ClassFinder$ExtendsClassFilter.isChildOf(ClassFinder.java:102) ~[jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder$ExtendsClassFilter.accept(ClassFinder.java:88) ~[jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.applyFiltering(ClassFinder.java:438) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClassesInOnePath(ClassFinder.java:398) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClasses(ClassFinder.java:328) [jorphan.jar:5.3]
at org.apache.jorphan.reflect.ClassFinder.findClassesThatExtend(ClassFinder.java:301) [jorphan.jar:5.3]
at org.apache.jmeter.gui.action.ActionRouter.findClassesThatExtend(ActionRouter.java:314) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.gui.action.ActionRouter.populateCommandMap(ActionRouter.java:350) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.JMeter.startGui(JMeter.java:395) [ApacheJMeter_core.jar:5.3]
at org.apache.jmeter.JMeter.start(JMeter.java:547) [ApacheJMeter_core.jar:5.3]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_251]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_251]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_251]
at org.apache.jmeter.NewDriver.main(NewDriver.java:252) [ApacheJMeter.jar:5.3]