Currently I have installed the Open Monograph Press the facing this problem when trying to download the Publication format.
Apache error log is given below:
[Thu Sep 08 21:57:11.429813 2022] [proxy_fcgi:error] [pid 1618072:tid 140596708099840] [client 117.194.69.158:60347] AH01071: Got error ‘PHP message: PHP Fatal error: Uncaught Error: Call to undefined method Submission::getFullTitles() in /home/sprinpub/domains/books.sprinpub.com/public_html/plugins/generic/dublinCoreMeta/DublinCoreMetaPlugin.inc.php:221\nStack trace:\n#0 /home/sprinpub/domains/books.sprinpub.com/public_html/lib/pkp/classes/plugins/HookRegistry.inc.php(107): DublinCoreMetaPlugin->monographFileView()\n#1 /home/sprinpub/domains/books.sprinpub.com/public_html/pages/catalog/CatalogBookHandler.inc.php(307): HookRegistry::call()\n#2 /home/sprinpub/domains/books.sprinpub.com/public_html/pages/catalog/CatalogBookHandler.inc.php(216): CatalogBookHandler->download()\n#3 /home/sprinpub/domains/books.sprinpub.com/public_html/lib/pkp/classes/core/PKPRouter.inc.php(395): CatalogBookHandler->view()\n#4 /home/sprinpub/domains/books.sprinpub.com/public_html/lib/pkp/classes/core/PKPPageRouter.inc.php(246): PKPRouter->_authorizeInitializeAndCallRequest()\n#5 /home/sprinpub/domains/books.sprinpub.com/public_html/lib/pkp/classes/core/Dispatc…’, referer: https://books.sprinpub.com/en/catalog/book/book03