I'm trying to install the Copy Artifact plugin but I'm also running run into a few exceptions, whenever I try to do so:

java.io.IOException: Failed to dynamically deploy this plugin
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1328)
at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1126)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at hudson.remoting.AtmostOneThreadExecutor$Worker.run(AtmostOneThreadExecutor.java:110)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Failed to install copyartifact plugin
at hudson.PluginManager.dynamicLoad(PluginManager.java:487)
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1324)
... 5 more
Caused by: jenkins.ExtensionRefreshException: com.google.inject.CreationException: Guice creation errors:

1) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=1) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

2) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=2) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

3) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=8) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

4) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=9) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

5) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=13) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

6) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=14) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

6 errors
at hudson.ExtensionFinder$GuiceFinder.refresh(ExtensionFinder.java:348)
at jenkins.model.Jenkins.refreshExtensions(Jenkins.java:2283)
at hudson.PluginManager.dynamicLoad(PluginManager.java:480)
... 6 more
Caused by: com.google.inject.CreationException: Guice creation errors:

1) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=1) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

2) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=2) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

3) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=8) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

4) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=9) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

5) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=13) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

6) A binding to hudson.model.Descriptor annotated with @com.google.inject.name.Named(value=14) was already configured at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530).
at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:530)

6 errors
at com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:448)
at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:155)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:107)
at com.google.inject.internal.InjectorImpl.createChildInjector(InjectorImpl.java:230)
at hudson.ExtensionFinder$GuiceFinder.refresh(ExtensionFinder.java:335)
... 8 more

I'm running Jenkins 1.634.