Fatal error: Uncaught TypeError: PKP\orcid\OrcidManager::getApiType(): Return value must be of type string, null returned in /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/orcid/OrcidManager.php:373 Stack trace: #0 /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/orcid/OrcidManager.php(115): PKP\orcid\OrcidManager::getApiType() #1 /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/user/form/RegistrationForm.php(139): PKP\orcid\OrcidManager::getOrcidUrl() #2 /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/form/Form.php(156): PKP\user\form\RegistrationForm->fetch() #3 /www/wwwroot/ojs_3_5_0_0/lib/pkp/pages/user/RegistrationHandler.php(66): PKP\form\Form->display() #4 [internal function]: PKP\pages\user\RegistrationHandler->register() #5 /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/core/PKPRouter.php(327): call_user_func() #6 /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #7 /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route() #8 /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/core/PKPApplication.php(426): PKP\core\Dispatcher->dispatch() #9 /www/wwwroot/ojs_3_5_0_0/index.php(21): PKP\core\PKPApplication->execute() #10 {main} thrown in /www/wwwroot/ojs_3_5_0_0/lib/pkp/classes/orcid/OrcidManager.php on line 373