Fatal error: Uncaught Error: Call to a member function getPath() on null in /var/www/vhosts/hspioa.us/httpdocs/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php:47 Stack trace: #0 /var/www/vhosts/hspioa.us/httpdocs/plugins/generic/googleScholar/index.php(19): require_once() #1 /var/www/vhosts/hspioa.us/httpdocs/lib/pkp/classes/plugins/PluginRegistry.inc.php(241): include('/var/www/vhosts...') #2 /var/www/vhosts/hspioa.us/httpdocs/lib/pkp/classes/plugins/PluginRegistry.inc.php(114): PluginRegistry::_instantiatePlugin() #3 /var/www/vhosts/hspioa.us/httpdocs/lib/pkp/classes/core/Dispatcher.inc.php(133): PluginRegistry::loadCategory() #4 /var/www/vhosts/hspioa.us/httpdocs/lib/pkp/classes/core/PKPApplication.inc.php(360): Dispatcher->dispatch() #5 /var/www/vhosts/hspioa.us/httpdocs/index.php(68): PKPApplication->execute() #6 {main} thrown in /var/www/vhosts/hspioa.us/httpdocs/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 47