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(1/1) FatalThrowableError

Non-static method Ets_blog_comment::getCommentsWithFilter() cannot be called statically

in blog.php line 89
at Ets_blogBlogModuleFrontController->_initContent()in blog.php line 54
at Ets_blogBlogModuleFrontController->initContent()in Controller.php line 306
at ControllerCore->run()in Dispatcher.php line 518
at DispatcherCore->dispatch()in index.php line 28