Hi, I am trying to install this export plugin for Crossref on OMP 3.3.0-14 (GitHub - ajnyga/datacite at crossref) but I get the following error:
[30-Jun-2023 17:17:30 UTC] PHP Fatal error: Uncaught --> Smarty: Unable to load template 'app:common/header.tpl' in 'plugins-1-plugins-importexport-crossref-importexport-crossref:index.tpl' <--
thrown in /home2/.../lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php on line 195