Submissions don't appear after importing using Native XML Import v3.3.0.8 to


I try to import an article from an OJS to another (v3.3.0.8 to v. using the Native XML Plugin, and it worked fine.
Then I went to the All actives and it says that I have a submission but it doesn’t show any submission at all.
We check the error logs and we got:

PHP Fatal error: Uncaught Error: Call to a member function getData() on null in /var/www/html/ojs/classes/search/\nStack trace:\n
#0 /var/www/html/ojs/plugins/importexport/native/filter/ ArticleSearchIndex->submissionMetadataChanged()\n
#1 /var/www/html/ojs/lib/pkp/classes/filter/ NativeXmlArticleFilter->process()\n
#2 /var/www/html/ojs/plugins/importexport/native/ Filter->execute()\n
#3 /var/www/html/ojs/plugins/importexport/native/ NativeImportExportPlugin->importSubmissions()\n
#4 /var/www/html/ojs/lib/pkp/pages/management/ NativeImportExportPlugin->display()\n
#5 /var/www/html/ojs/lib/pkp/classes/core/ PKPToolsHandler->importexport()\n
#6 /var/www/html/ojs/lib/pkp/classes/core/ PKPRouter->_authorizeInitializeAndCallRequest()\n
#7 /var/www/html/ojs/lib/pkp/classes/core/ PKPPageRoute in /var/www/html/ojs/classes/search/ on line 38, referer:

The print of what I’m seeing is

One of the reasons for this problem is deleting sections.

Are you sure you have the same “Sections” in both journals?