Hi @drugurkocak,
many thank for this advise. I am reading the two threads and I am amazed by the amount of work.
The second thread (SOLVED: Upgrade from OJS 3.1.2.4 to OJS 3.2.1.2: problems with url api in back-office - #13 by drugurkocak), in your final post, is more clear to me, but I read that you say that that solution is not working yet on single journals installation only, which is my current case.
I have to say that before, an hour ago, I did manage to delete all the index.php/journalpath, but the style of the website was broken.
So now I have done a step backwards and I have restored the journalpath. This is my single journal site, installed in a subdirectory: https://www.ista-online.org/journal/jta
I am looking forward to delete that “jta” (which is my journalpath) away.
Many thanks for now, I will keep studying your documentation.
Best wishes,
Leonardo