Minor revision changed to major revision I submitted to a journal, in which I got a minor revision. In the minor revision, I was asked to do nothing other than to include a future research direction in the end after the conclusion. I submitted with the minor revision two days ago and today, I got a mail saying that a major revision is suggested.
The mail reads as follows:

Thanks for submitting your paper to this special issue. Please add a section after introduction for literature review. The current quality of paper is not sufficient to publish on the journal. Please include most recent literature as well.
You will need to state the research motivation at the beginning and conclude the research questions in the end.

Now, I am not asked to do anything regarding the analysis part or anything. I already have stated the research questions in the manuscript. I also don't understand what it means, &quot;current quality is not sufficient.&quot;
Is this usual? Any advice on how to deal this?
Update: My paper got accepted. Woah..!
In my field, biomedical science, it is highly unusual to hear back from a peer-reviewed journal within 2 days of resubmission. I would recommend double-checking whether the journal is a peer-reviewed journal and whether the papers published in this journal provide a significant contribution to your field. It is important to always check that as there are multiple predatory journals out there. As Roland said, you have two options. Certainly, you should always consult with your supervisor prior to any action.
Another point I would like to add is that usually when the reviewer finds issues regarding the quality of the manuscript, the reviewer will point out the specific issues in order to clarify where the authors have to work on before resubmission. It is very strange that you did not receive a detailed review.
As for the change from minor to major revision, that can happen. Particularly because not always the same reviewer will be available to review all versions of a manuscript, so in some cases, your manuscript may be sent out to a different reviewer after resubmission.