No map shown on the worldview tab

Hello,
I have installed snap right now, but I can’t see maps in the world view tab: there is only an empty space. Below it the writing: “Off Globe”.
Errors are reported, but I’m not familiar with java and don’t know what to do:

java.util.ServiceConfigurationError: javax.xml.stream.XMLInputFactory: Provider com.ctc.wstx.stax.WstxInputFactory not found
at java.util.ServiceLoader.fail(ServiceLoader.java:239)
at java.util.ServiceLoader.access$300(ServiceLoader.java:185)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:372)
at java.util.ServiceLoader$LazyIterator.access$700(ServiceLoader.java:323)
at java.util.ServiceLoader$LazyIterator$2.run(ServiceLoader.java:407)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:409)
at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
at javax.xml.stream.FactoryFinder$1.run(FactoryFinder.java:353)
at java.security.AccessController.doPrivileged(Native Method)
at javax.xml.stream.FactoryFinder.findServiceProvider(FactoryFinder.java:341)
Caused: java.lang.RuntimeException: Provider for class javax.xml.stream.XMLInputFactory cannot be created
at javax.xml.stream.FactoryFinder.findServiceProvider(FactoryFinder.java:367)
Caused: javax.xml.stream.FactoryConfigurationError: Provider for class javax.xml.stream.XMLInputFactory cannot be created
at javax.xml.stream.FactoryFinder.findServiceProvider(FactoryFinder.java:370)
at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:313)
at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:227)
at javax.xml.stream.XMLInputFactory.newInstance(XMLInputFactory.java:154)
at gov.nasa.worldwind.util.WWXML.openEventReaderStream(WWXML.java:353)
at gov.nasa.worldwind.util.WWXML.openEventReader(WWXML.java:502)
at gov.nasa.worldwind.util.WWXML.openEventReader(WWXML.java:464)
at gov.nasa.worldwind.ogc.OGCCapabilities.createReader(OGCCapabilities.java:89)
at gov.nasa.worldwind.ogc.OGCCapabilities.(OGCCapabilities.java:70)
at gov.nasa.worldwind.ogc.wms.WMSCapabilities.(WMSCapabilities.java:71)
at gov.nasa.worldwind.util.SessionCacheRetrievalPostProcessor.handleWMSCapabilitiesContent(SessionCacheRetrievalPostProcessor.java:248)
at gov.nasa.worldwind.util.SessionCacheRetrievalPostProcessor.handleContent(SessionCacheRetrievalPostProcessor.java:238)
at gov.nasa.worldwind.util.SessionCacheRetrievalPostProcessor.onRetrievalSuceeded(SessionCacheRetrievalPostProcessor.java:193)
at gov.nasa.worldwind.util.SessionCacheRetrievalPostProcessor.run(SessionCacheRetrievalPostProcessor.java:177)
at gov.nasa.worldwind.retrieve.URLRetriever.end(URLRetriever.java:352)
at gov.nasa.worldwind.retrieve.URLRetriever.call(URLRetriever.java:280)
at gov.nasa.worldwind.retrieve.URLRetriever.call(URLRetriever.java:27)
at gov.nasa.worldwind.util.SessionCacheUtils.retrieveSessionData(SessionCacheUtils.java:80)
at gov.nasa.worldwind.util.SessionCacheUtils.getOrRetrieveSessionCapabilities(SessionCacheUtils.java:170)
at gov.nasa.worldwind.terrain.BasicElevationModel.retrieveResources(BasicElevationModel.java:2028)
at gov.nasa.worldwind.terrain.BasicElevationModel$3.run(BasicElevationModel.java:2118)
[catch] at java.lang.Thread.run(Thread.java:748)

SNAP desktop/engine implementation version 8.0.7
jre: openjdk runtime environment 1.8.0_242-b20
jvm openjdk 64-bit server vm by azul system

on linux ubuntu 20.04

This is a known issue and was recently discussed here:
SNAP 8.0.6/8.0.7 update released - snap - STEP Forum (esa.int)
Instead using the World View you can open the World Map (2D).
You can invoke it from the menu at View / Tool Windows / World Map

Hello marpet,
your solution solved my issue.
Many thanks.
Francesco