Fatal error: Uncaught TypeError: htmlspecialchars(): Argument #1 ($string) must be of type string, array given in /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/plugins/function.mailto.php:104 Stack trace: #0 /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/plugins/function.mailto.php(104): htmlspecialchars() #1 /var/www/ojs/cache/t_compile/24af88df411d84c27363092e0370504414981066^6b0444a34e5318c94e752093d374a9114c1ff855_0.app.frontendpagescontact.tpl.php(95): smarty_function_mailto() #2 /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_69523d85d62d34_64365831() #3 /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #4 /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #5 /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #6 /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #7 /var/www/ojs/lib/pkp/classes/template/PKPTemplateManager.php(1505): Smarty_Internal_TemplateBase->display() #8 /var/www/ojs/lib/pkp/pages/about/AboutContextHandler.php(266): PKP\template\PKPTemplateManager->display() #9 [internal function]: PKP\pages\about\AboutContextHandler->contact() #10 /var/www/ojs/lib/pkp/classes/core/PKPRouter.php(327): call_user_func() #11 /var/www/ojs/lib/pkp/classes/core/PKPPageRouter.php(249): PKP\core\PKPRouter->_authorizeInitializeAndCallRequest() #12 /var/www/ojs/lib/pkp/classes/core/Dispatcher.php(157): PKP\core\PKPPageRouter->route() #13 /var/www/ojs/lib/pkp/classes/core/PKPApplication.php(426): PKP\core\Dispatcher->dispatch() #14 /var/www/ojs/index.php(21): PKP\core\PKPApplication->execute() #15 {main} thrown in /var/www/ojs/lib/pkp/lib/vendor/smarty/smarty/libs/plugins/function.mailto.php on line 104