Hi @mreedks,
I got an error with a 3.1.2-4 OJS instance that tries, without success, to do a redirection to the DOAJ api/v2.
What I did to solve it was to simply change, within the \plugins\importexport\doaj\DOAJExportPlugin.inc.php
file
define('DOAJ_API_URL', 'https://doaj.org/api/v1/');
for:
define('DOAJ_API_URL', 'https://doaj.org/api/v2/');
Best,
Marie-Hélène