[OJS 3.0.0] Ghost / residual submissions items

We just created a new journal in our installation of OJS3 that already manage with sucess one journal.

When we finish the initial setup the journal already presented some submissions.


I noticed that those itens were tests submissions we had for the first journal and already deleted before real use of the system. Now they appears in the new journal. If I try to enter de submission processes, see submission, log or even delete the itens agains, receive message:

For delete:

For enter submission:

404 Not Found

For submission log:
Failed Ajax request or invalid JSON returned.

Also, I was unable to locate any documents associated to these submission on server-side.

How can I get rid of those “ghost” / “residual” submissions? This can happen again in the event of creation of another journal?