vt830(master): fatal error

Open the "My Sites" module from the Tools menu (does anyone actually use it though?):

Fatal error: Uncaught TypeError: Unsupported operand types: string + int in /var/www/html/vt830/test/templates_c/v7/8bd7df36e03cbf28c3407fafdc898b960136d39a_0.file.ListViewContents.tpl.php:79 Stack trace: #0 /var/www/html/vt830/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_66f68065b244b7_84893548() #1 /var/www/html/vt830/vendor/smarty/smarty/libs/sysplugins/smarty_template_compiled.php(114): Smarty_Template_Resource_Base->getRenderedTemplateCode() #2 /var/www/html/vt830/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php(217): Smarty_Template_Compiled->render() #3 /var/www/html/vt830/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(238): Smarty_Internal_Template->render() #4 /var/www/html/vt830/vendor/smarty/smarty/libs/sysplugins/smarty_internal_templatebase.php(134): Smarty_Internal_TemplateBase->_execute() #5 /var/www/html/vt830/includes/runtime/Viewer.php(226): Smarty_Internal_TemplateBase->display() #6 /var/www/html/vt830/modules/Portal/views/List.php(38): Vtiger_Viewer->view() #7 /var/www/html/vt830/includes/main/WebUI.php(215): Portal_List_View->process() #8 /var/www/html/vt830/index.php(26): Vtiger_WebUI->process() #9 {main} thrown in /var/www/html/vt830/test/templates_c/v7/8bd7df36e03cbf28c3407fafdc898b960136d39a_0.file.ListViewContents.tpl.php on line 79