Try to clear cache of the site after install

I did as you suggested:
I can add content or delete content but still get a 500 error. I have to reload the page to see the result. Sorry I can't use this potentially great plugin on a live site right now.

Do you use PHP 5.3.0 or higher?

This happend to me 2 after bar upgrade, I deleted it and all is fine I am using PHP:
PHP Version: 5.4.20

Must say it worked well it did slow the site down a bit too but was ok ,,,, but after upgrade all is bad :(

I get a 500 error when I try to look at profiles on my site. I turned debug mode on and I get this error. I tried uninstalling, deactivating, reinstalling the plugin and reinstalling update 1.5.3(since that is when it happened) and still get this errorDoes anybody know what this means and how to fix it?

OW Debug - WarningMessage:call_user_func(PROFILEPROGRESSBAR_CMP_Widget::getStandardSettingValueList) [function.call-user-func]: First argument is expected to be a valid callbackFile:/home/content/01/8685301/html/buckget.com/ow_system_plugins/base/components/drag_and_drop_panel.phpLine:64OW Debug - ExceptionMessage:Class PROFILEPROGRESSBAR_CMP_Widget does not existFile:/home/content/01/8685301/html/buckget.com/ow_system_plugins/base/components/drag_and_drop_item.phpLine:188Trace:#0 /home/content/01/8685301/html/buckget.com/ow_system_plugins/base/components/drag_and_drop_item.php(188): ReflectionClass->__construct('PROFILEPROGRESS...') #1 /home/content/01/8685301/html/buckget.com/ow_system_plugins/base/components/drag_and_drop_item.php(85): BASE_CMP_DragAndDropItem->checkComponent('PROFILEPROGRESS...') #2 /home/content/01/8685301/html/buckget.com/ow_system_plugins/base/components/drag_and_drop_entity_panel.php(199): BASE_CMP_DragAndDropItem->setContentComponentClass('PROFILEPROGRESS...') #3 /home/content/01/8685301/html/buckget.com/ow_smarty/template_c/1bb0da24e083c54082f13c9aee17293697623076.file.drag_and_drop_entity_panel.html.php(113): BASE_CMP_DragAndDropEntityPanel->tplComponent(Array, Object(Smarty_Internal_Template)) #4 /home/content/01/8685301/html/buckget.com/ow_libraries/smarty3/sysplugins/smarty_internal_templatebase.php(180): content_52a60c3eafe1b4_03839493(Object(Smarty_Internal_Template)) #5 /home/content/01/8685301/html/buckget.com/ow_core/view_renderer.php(101): Smarty_Internal_TemplateBase->fetch('/home/content/0...') #6 /home/content/01/8685301/html/buckget.com/ow_core/renderable.php(263): OW_ViewRenderer->renderTemplate('/home/content/0...') #7 /home/content/01/8685301/html/buckget.com/ow_core/component.php(80): OW_Renderable->render() #8 /home/content/01/8685301/html/buckget.com/ow_system_plugins/base/controllers/component_panel.php(156): OW_Component->render() #9 /home/content/01/8685301/html/buckget.com/ow_system_plugins/base/controllers/component_panel.php(272): BASE_CTRL_ComponentPanel->action('profile', 2, false, Array, 'drag_and_drop_e...') #10 /home/content/01/8685301/html/buckget.com/ow_system_plugins/base/controllers/component_panel.php(288): BASE_CTRL_ComponentPanel->myProfile(Array) #11 [internal function]: BASE_CTRL_ComponentPanel->profile(Array) #12 /home/content/01/8685301/html/buckget.com/ow_core/request_handler.php(266): ReflectionMethod->invokeArgs(Object(BASE_CTRL_ComponentPanel), Array) #13 /home/content/01/8685301/html/buckget.com/ow_core/application.php(317): OW_RequestHandler->dispatch() #14 /home/content/01/8685301/html/buckget.com/index.php(65): OW_Application->handleRequest() #15 {main}Type:ReflectionExceptionThanks guys