ExceptionInInitializerError

[clement1234567891011]

Hi,

I used to be able to use Graphene-core via the Java API just fine, but it now stopped working. I tried reinstalling it, and only having an "empty" main java file but as soon as I call:
Graphene graphene = new Graphene();
I get the error below.

22:19:37 main INFO |o.l.graphene.core.Graphene getCoreferenceResolver - Load Coreference-Resolver: 'org.lambda3.graphene.core.coreference.impl.stanford.StanfordCoref'
Exception in thread "main" java.lang.ExceptionInInitializerError
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:375)
at org.lambda3.graphene.core.Graphene.getCoreferenceResolver(Graphene.java:75)
at org.lambda3.graphene.core.Graphene.(Graphene.java:61)
at org.lambda3.graphene.core.Graphene.(Graphene.java:53)
at test.Encodability.Test.main(Test.java:15)
Caused by: java.lang.IllegalArgumentException: No annotator named mention
at edu.stanford.nlp.pipeline.AnnotatorPool.get(AnnotatorPool.java:151)
at edu.stanford.nlp.pipeline.StanfordCoreNLP.(StanfordCoreNLP.java:278)
at edu.stanford.nlp.pipeline.StanfordCoreNLP.(StanfordCoreNLP.java:194)
at edu.stanford.nlp.pipeline.StanfordCoreNLP.(StanfordCoreNLP.java:190)
at org.lambda3.graphene.core.coreference.impl.stanford.StanfordCoref.(StanfordCoref.java:64)
... 6 more

Any idea what's causing this and how I can solve this?

Many thanks in advance!
Clement