wpForo shortcodes are only designed for post types. You can't use them in widgets.

when i was moving my site from localhost to liveserver db getting error because of this plugin  

error is 

 The used table type doesn't support FULLTEXT indexes  that table is wp_foro_posts and all wp_foro_*

why its showing like this error.

It's already explained if you click on text. Before MySQL 5.6 Full-Text Search is supported only with MyISAM Engine.  Therefore either change the engine for your table InnoDB to MyISAM  or upgrade to 5.6 and use InnoDB Full-Text Search.

Open backup file, replace all InnoDB words to MyISAM, save and import in empty database. Or upgrade your MySQL to 5.6 > .

i've changed as you said while uploading am getting below error

Table structure for table `adh_wpforo_topics` -- CREATE TABLE IF NOT EXISTS `adh_wpforo_topics` ( `topicid` bigint(20) unsigned NOT NULL AUTO_INCREMENT, `forumid` int(10) unsigned NOT NULL, `first_postid` bigint(20) unsigned NOT NULL DEFAULT '0', `userid` int(10) unsigned NOT NULL, `title` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL, `slug` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL, `created` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, `modified` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP, `last_post` bigint(20) unsigned NOT NULL DEFAULT '0', `posts` int(11) NOT NULL DEFAULT '0', `votes` int(11) NOT NULL DEFAULT '0', `answers` int(11) NOT NULL DEFAULT '0', `views` int(10) unsigned NOT NULL DEFAULT '0', `meta_key` text COLLATE utf8mb4_unicode_ci, `meta_desc` text COLLATE utf8mb4_unicode_ci, `type` tinyint(4) NOT NULL DEFAULT '0', `closed` tinyint[...]

MySQL said: 

#1067 - Invalid default value for 'created'