Errors after installing 9.6.0

Hi,

The installation is on Windows Server 2016 with latest updates.
RaapidMiner studio is 9.6.0

On startup getting the following errors:

WARNING: Async: Hardware accelerated browser setup test failed, HTML5 components may not be available!
com.teamdev.jxbrowser.navigation.TimeoutException: Failed to execute task withing 45 seconds.
        at com.teamdev.jxbrowser.navigation.internal.NavigationImpl.loadAndWait(NavigationImpl.java:238)
        at com.teamdev.jxbrowser.navigation.internal.NavigationImpl.loadUrlAndWait(NavigationImpl.java:99)
        at com.teamdev.jxbrowser.navigation.internal.NavigationImpl.loadUrlAndWait(NavigationImpl.java:76)
        at com.teamdev.jxbrowser.navigation.internal.NavigationImpl.loadUrlAndWait(NavigationImpl.java:68)
        at com.teamdev.jxbrowser.engine.internal.EngineImpl.newBrowser(EngineImpl.java:441)
        at com.rapidminer.extension.browser.BrowserFactory.createBrowser(BrowserFactory.java:245)
        at com.rapidminer.extension.browser.PluginInitBrowser.lambda$initGui$6(PluginInitBrowser.java:168)
        at java.lang.Thread.run(Thread.java:748)

SystemId Unknown; Line #32; Column #39; The entity "ldquo" was referenced, but not declared.
SystemId Unknown; Line #32; Column #39; The entity "ldquo" was referenced, but not declared.

The program starts, but the busy wheel is always on, there seems to be a (model ?) dialog open, but it is not visible.
We cannot open most of the folders.