Matomo directs OJS login to admin url

Hi all,
I installed Matomo via Softaculous without installing the Piwik/Matomo plugin in OJS (Open Journal System PKP) 3.2.1. I installed the tracking code in Custom Tags and the matomo widget in indexJournal.tpl to display visitors graph and maps. The Matomo is working but it always directs the journal web login to matomo admin url

How to resolve this issue?