After accidentally deleting Data Dictionary (app:dictionary) Alfresco doesn't start

Question

One operator deleted Data Dictionary and restarted Alfresco 3.4.12 Enterprise Edition. The context /alfresco doesn't start with the following exception:

17:43:11,100 INFO  [STDOUT] 17:43:11,097  ERROR [web.context.ContextLoader] Context initialization failed
org.alfresco.error.AlfrescoRuntimeException: 08050000 Failed to find 'app:dictionary' node
at org.alfresco.repo.action.scheduled.ScheduledPersistedActionServiceImpl.locatePersistanceFolder(ScheduledPersistedActionServiceImpl.java:132)

Looking at the source code in org.alfresco.repo.action.scheduled.ScheduledPersistedActionServiceImpl.java, the path is hardwired.

Then we followed the tip from https://community.alfresco.com/thread/202859-error-failed-to-find-appdictionary-node, editing bootstrap-context.xml, comment out the class.

After the change the error went over, now the RenditionService couldn't start.

We're looking for a way to recover the deleted node, since we can obtain the nodeid from the database. So we created a small class and invoke it through spring in bootstrap-context.xml, but it's failing due to permissions. Could you take a look at the code and tell us what's wrong. The code is:

package com.impulseit.test;

import javax.transaction.UserTransaction;
import org.alfresco.repo.node.archive.NodeArchiveService;
import org.alfresco.repo.node.archive.RestoreNodeReport;
import org.alfresco.repo.security.authentication.AuthenticationUtil;
import org.alfresco.repo.security.authentication.AuthenticationUtil.RunAsWork;
import org.alfresco.service.ServiceRegistry;
import org.alfresco.service.cmr.repository.NodeRef;

public class RestoreNode {
    private NodeArchiveService nodeArchiveService;
    private ServiceRegistry serviceRegistry;
    private String nodeName ="archive://SpacesStore/adfc0cfe-e20b-467f-ad71-253aea8f9ac9";

    public void setNodeArchiveService(NodeArchiveService value)
    {
        this.nodeArchiveService = value;
    }

    public void setServiceRegistry(ServiceRegistry value)
    {
        this.serviceRegistry = value;
    }

    public void doRestore() {
        RunAsWork<Void> runAsWork = new RunAsWork<Void>()
        {
            public Void doWork() throws Exception
            {
                NodeRef nodeRef = new NodeRef(nodeName);
                //RestoreNodeReport restoreNodeReport =
                UserTransaction trx_A = serviceRegistry.getTransactionService().getUserTransaction();
                trx_A.begin();
                AuthenticationUtil.setFullyAuthenticatedUser(AuthenticationUtil.getSystemUserName());
                RestoreNodeReport restored = nodeArchiveService.restoreArchivedNode(nodeRef);
                trx_A.commit();
                return null;
            }
        };
        AuthenticationUtil.runAs(runAsWork,AuthenticationUtil.getSystemUserName());
    }

    public RestoreNode() {
    }
}

The exception is:

19:31:21,747 User:admin ERROR [node.archive.NodeArchiveServiceImpl] An unhandled exception stopped the restore
java.lang.NullPointerException
    at     org.alfresco.repo.security.permissions.impl.model.PermissionModel.getPermissionReference(PermissionModel.java:1315)
at org.alfresco.repo.security.permissions.impl.PermissionServiceImpl.getPermissionReference(PermissionServiceImpl.java:956)
    at org.alfresco.repo.security.permissions.impl.PermissionServiceImpl.hasPermission(PermissionServiceImpl.java:976)

Thank you in advance.

Luis