!ENTRY com.knime.explorer.server 4 0 2019-08-15 09:42:02.537
!MESSAGE Error occurred while loading workflow into memory: An error occurred during the creation of a job for '/Credit_Scoring Training x.large datasets': Errors loading workflow 'Credit_Scoring Training x.large datasets': Status: Error: Credit_Scoring Training x.large datasets 0 loaded with errors
  Status: Error: Credit_Scoring Training x.large datasets 0
    Status: Error: Node "Number To String" not available from extension "KNIME Core" (provided by "KNIME AG, Zurich, Switzerland"; plugin "org.knime.base" is installed)

!STACK 1
org.eclipse.core.runtime.CoreException: Error occurred while loading workflow into memory: An error occurred during the creation of a job for '/Credit_Scoring Training x.large datasets': Errors loading workflow 'Credit_Scoring Training x.large datasets': Status: Error: Credit_Scoring Training x.large datasets 0 loaded with errors
  Status: Error: Credit_Scoring Training x.large datasets 0
    Status: Error: Node "Number To String" not available from extension "KNIME Core" (provided by "KNIME AG, Zurich, Switzerland"; plugin "org.knime.base" is installed)

	at com.knime.explorer.server.rest.RestServerExplorerFileStore.throwCoreException(RestServerExplorerFileStore.java:401)
	at com.knime.explorer.server.rest.RestServerExplorerFileStore.loadWorkflow(RestServerExplorerFileStore.java:1296)
	at com.knime.explorer.server.internal.view.actions.rest.RestServerExecuteAction.execute(RestServerExecuteAction.java:240)
	at com.knime.explorer.server.internal.view.actions.rest.RestServerExecuteAction.access$1(RestServerExecuteAction.java:235)
	at com.knime.explorer.server.internal.view.actions.rest.RestServerExecuteAction$2.run(RestServerExecuteAction.java:149)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
Caused by: java.lang.RuntimeException: An error occurred during the creation of a job for '/Credit_Scoring Training x.large datasets': Errors loading workflow 'Credit_Scoring Training x.large datasets': Status: Error: Credit_Scoring Training x.large datasets 0 loaded with errors
  Status: Error: Credit_Scoring Training x.large datasets 0
    Status: Error: Node "Number To String" not available from extension "KNIME Core" (provided by "KNIME AG, Zurich, Switzerland"; plugin "org.knime.base" is installed)

	at com.knime.explorer.server.rest.RestServerContent.createWorkflowJob(RestServerContent.java:1727)
	at com.knime.explorer.server.rest.RestServerExplorerFileStore.loadWorkflow(RestServerExplorerFileStore.java:1288)
	... 4 more
!SUBENTRY 1 com.knime.explorer.server 4 0 2019-08-15 09:42:02.537
!MESSAGE Error occurred while loading workflow into memory: An error occurred during the creation of a job for '/Credit_Scoring Training x.large datasets': Errors loading workflow 'Credit_Scoring Training x.large datasets': Status: Error: Credit_Scoring Training x.large datasets 0 loaded with errors
  Status: Error: Credit_Scoring Training x.large datasets 0
    Status: Error: Node "Number To String" not available from extension "KNIME Core" (provided by "KNIME AG, Zurich, Switzerland"; plugin "org.knime.base" is installed)

!STACK 0
java.lang.RuntimeException: An error occurred during the creation of a job for '/Credit_Scoring Training x.large datasets': Errors loading workflow 'Credit_Scoring Training x.large datasets': Status: Error: Credit_Scoring Training x.large datasets 0 loaded with errors
  Status: Error: Credit_Scoring Training x.large datasets 0
    Status: Error: Node "Number To String" not available from extension "KNIME Core" (provided by "KNIME AG, Zurich, Switzerland"; plugin "org.knime.base" is installed)

	at com.knime.explorer.server.rest.RestServerContent.createWorkflowJob(RestServerContent.java:1727)
	at com.knime.explorer.server.rest.RestServerExplorerFileStore.loadWorkflow(RestServerExplorerFileStore.java:1288)
	at com.knime.explorer.server.internal.view.actions.rest.RestServerExecuteAction.execute(RestServerExecuteAction.java:240)
	at com.knime.explorer.server.internal.view.actions.rest.RestServerExecuteAction.access$1(RestServerExecuteAction.java:235)
	at com.knime.explorer.server.internal.view.actions.rest.RestServerExecuteAction$2.run(RestServerExecuteAction.java:149)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)