Problème de teléchargement

[Rubythecherry]

bonjours, depuis quel que temp que j'ai reteléchargé Romstation sur mon pc j'ai quel que petit problème lors que j'ai transférer mes ficher de romstation a mon disque dur externe pour economiser de l'espace sur mon disque dur interne de mon pc. Et depuis a chaque fois je telécharge un jeux, je recois une fenêtre d'erreur et je ne comprend pas c'est quoi le problème. Si il y a quel qu'un qui  peut m'aider sa serait très apprécier. Voici le copie coller de ls fenêtre d'erreur : 

 

javax.persistence.RollbackException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.7.6.v20200131-b7c997804f): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
Error Code: 0
Call: INSERT INTO GAME_GENRE (GENRE_ID, Game_ID) VALUES (?, ?)
    bind => [2 parameters bound]
Query: DataModifyQuery(name="genres" sql="INSERT INTO GAME_GENRE (GENRE_ID, Game_ID) VALUES (?, ?)")
    at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:161)
    at org.romstation.application.task.p.p(GameFileDownloadTask.java:612)
    at org.romstation.application.task.p.g(GameFileDownloadTask.java:126)
    at org.romstation.application.task.p.call(GameFileDownloadTask.java:51)
    at javafx.concurrent.Task$TaskCallable.call(Task.java:1423)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.romstation.application.task.p.run(GameFileDownloadTask.java:98)
    at java.lang.Thread.run(Thread.java:748)
Caused by: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.7.6.v20200131-b7c997804f): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
Error Code: 0
Call: INSERT INTO GAME_GENRE (GENRE_ID, Game_ID) VALUES (?, ?)
    bind => [2 parameters bound]
Query: DataModifyQuery(name="genres" sql="INSERT INTO GAME_GENRE (GENRE_ID, Game_ID) VALUES (?, ?)")
    at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:342)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.processExceptionForCommError(DatabaseAccessor.java:1650)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:683)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:567)
    at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:2099)
    at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:313)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:275)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:261)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelectCall(DatasourceCallQueryMechanism.java:304)
    at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelect(DatasourceCallQueryMechanism.java:284)
    at org.eclipse.persistence.internal.queries.StatementQueryMechanism.executeNoSelect(StatementQueryMechanism.java:120)
    at org.eclipse.persistence.queries.DataModifyQuery.executeDatabaseQuery(DataModifyQuery.java:87)
    at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:911)
    at org.eclipse.persistence.internal.sessions.AbstractSession.internalExecuteQuery(AbstractSession.java:3356)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1898)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1880)
    at org.eclipse.persistence.mappings.ManyToManyMapping.insertIntoRelationTable(ManyToManyMapping.java:674)
    at org.eclipse.persistence.mappings.ManyToManyMapping.performDataModificationEvent(ManyToManyMapping.java:833)
    at org.eclipse.persistence.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:162)
    at org.eclipse.persistence.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:4398)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1495)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1585)
    at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:280)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:1222)
    at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:136)
    ... 7 more
Caused by: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
    at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
    at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
    at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
    at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
    at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
    at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
    at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedPreparedStatement42.<init>(Unknown Source)
    at org.apache.derby.jdbc.Driver42.newEmbedPreparedStatement(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
    at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.prepareStatement(DatabaseAccessor.java:1595)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.prepareStatement(DatabaseAccessor.java:1544)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseCall.prepareStatement(DatabaseCall.java:806)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:628)
    ... 29 more
Caused by: ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
    at org.apache.derby.iapi.error.StandardException.newException(Unknown Source)
    at org.apache.derby.impl.jdbc.SQLExceptionFactory.wrapArgsForTransportAcrossDRDA(Unknown Source)
    ... 46 more
Caused by: java.lang.NullPointerException
    at org.apache.derby.impl.sql.catalog.SYSCONSTRAINTSRowFactory.buildDescriptor(Unknown Source)
    at org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getConstraintDescriptorViaHeap(Unknown Source)
    at org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getAllConstraintDescriptors(Unknown Source)
    at org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getConstraintDescriptors(Unknown Source)
    at org.apache.derby.iapi.sql.dictionary.ForeignKeyConstraintDescriptor.getReferencedConstraint(Unknown Source)
    at org.apache.derby.impl.sql.compile.DMLModStatementNode.createConstraintDependencies(Unknown Source)
    at org.apache.derby.impl.sql.compile.DMLModStatementNode.bindConstraints(Unknown Source)
    at org.apache.derby.impl.sql.compile.InsertNode.bindStatement(Unknown Source)
    at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source)
    at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source)
    at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown Source)
    ... 38 more