Fatal error: Uncaught Error: Call to a member function getId() on null in /home/proceeding/public_html/proceeding.unmuhjember.ac.id/plugins/generic/orcidProfile/OrcidProfilePlugin.inc.php:304
Stack trace:
#0 /home/proceeding/public_html/proceeding.unmuhjember.ac.id/plugins/generic/orcidProfile/OrcidProfilePlugin.inc.php(343): OrcidProfilePlugin->buildOAuthUrl('orcidAuthorize', Array)
#1 /home/proceeding/public_html/proceeding.unmuhjember.ac.id/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_filterhandler.php(63): OrcidProfilePlugin->registrationFilter('<!DOCTYPE html>...', Object(Smarty_Internal_Template))
#2 /home/proceeding/public_html/proceeding.unmuhjember.ac.id/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(231): Smarty_Internal_Runtime_FilterHandler->runFilter('output', '<!DOCTYPE html>...', Object(Smarty_Internal_Template))
#3 /home/proceeding/public_html/proceeding.unmuhjember.ac.id/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase in /home/proceeding/public_html/proceeding.unmuhjember.ac.id/plugins/generic/orcidProfile/OrcidProfilePlugin.inc.php on line 304