Hi @ramon
you’ll need to export those changes out of git as a patch file, and then apply it via the command line using the patch command.
Here’s the diff: https://patch-diff.githubusercontent.com/raw/pkp/pkp-lib/pull/7414.diff
You’d place that file in your lib/pkp directory and then run the following command from that directory.
patch -p1 --dry-run < 7414.diff
And if there are no errors reported you can remove the --dry-run and try it again. Please make a full backup of your OJS installation first. Since this only affects the UserGroupDAO.inc.php file you can probably just make a copy of that.
Best
Jason