Bad Stuff Happend :(

error type: 1
error message: Uncaught Error: Class "string" not found in /html/cms/plugins/products/products.page.class.php:124 Stack trace: #0 /html/cms/system/plugin/cms.plugin.class.php(390): productsPage->showProduct('...', '...', Object(page), Array) #1 /html/cms/system/template/template.class.php(260): plugin->do_action_page('...', '...', '...', Object(page), Array) #2 /html/cms/system/template/template.class.php(190): template->exec_render_action(Object(templateAction)) #3 /html/cms/system/template/template.class.php(138): template->prepare_for_render() #4 /html/cms/page/page.view.class.php(51): template->render() #5 /html/cms/page/page.view.class.php(32): pageView->render_page_content(Object(page)) #6 /html/cms/page/page.cms.class.php(13): pageView->build_template() #7 /html/index.php(5): CMS::run() #8 {main} thrown
thrown in: /html/cms/plugins/products/products.page.class.php
on line 124