Related items showing on local PC but not Online (PHP / Database errors logged)

Hi there,

I’m using YARPP + WP Related Items (in order to show related posts when using WooCommerce) and they run fine on my site while running on a local PC using XAMPP for Windows.

Since I uploaded and published my website online (hosted by Siteground) I noticed my related posts aren’t displayed at all. I also noticed a really big (11Mb!) PHP error log in my root folder, containing hundreds of errors – I guess they can be related to this plugin.

Here are just a few of errors found on my php_errorlog file (there are a lot of them that look similar):

[12-Jun-2014 14:08:54 UTC] WordPress database error The used table type doesn't support FULLTEXT indexes for query (SELECT 2396 as reference_ID, ID, ROUND(0 + (MATCH (post_content) AGAINST ('')) * 1 + (MATCH (post_title) AGAINST ('guitar moonshine')) * 1 + (1 = 0) * 1 + (1 = 0) * 1,1) as score
 from wp_posts
left join wp_term_relationships as terms on ( terms.object_id = wp_posts.ID )
 where post_status in ( 'publish', 'static' ) and ID != '2396' and post_password =''  and post_type = 'product'
 group by ID
 having score >= 2.00 and ID != 0 and bit_or(terms.term_taxonomy_id in (0)) = 0 order by score desc limit 3) made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/plugins/woocommerce/templates/single-product.php'), wc_get_template_part, load_template, require('/plugins/woocommerce/templates/content-single-product.php'), do_action('woocommerce_after_single_product_summary'), call_user_func_array, woocommerce_output_product_data_tabs, wc_get_template, include('/plugins/woocommerce/templates/single-product/tabs/tabs.php'), call_user_func, woocommerce_tab_manager_tab_content, WC_Tab_Manager->get_product_tab, apply_filters('the_content'), call_user_func_array, WRI->the_wri_content_page_bottom, WRI->wri_display_related, yarpp_related, YARPP->display_related, YARPP_Cache_Bypass->begin_yarpp_time

[12-Jun-2014 14:08:54 UTC] WordPress database error The used table type doesn't support FULLTEXT indexes for query (SELECT 2396 as reference_ID, ID, ROUND(0 + (MATCH (post_content) AGAINST ('')) * 1 + (MATCH (post_title) AGAINST ('guitar moonshine')) * 1 + (1 = 0) * 1 + (1 = 0) * 1,1) as score
 from wp_posts
left join wp_term_relationships as terms on ( terms.object_id = wp_posts.ID )
 where post_status in ( 'publish', 'static' ) and ID != '2396' and post_password =''  and post_type = 'product'
 group by ID
 having score >= 2.00 and ID != 0 and bit_or(terms.term_taxonomy_id in (0)) = 0 order by score desc limit 3) made by require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/plugins/woocommerce/templates/single-product.php'), wc_get_template_part, load_template, require('/plugins/woocommerce/templates/content-single-product.php'), do_action('woocommerce_after_single_product_summary'), call_user_func_array, woocommerce_output_product_data_tabs, wc_get_template, include('/plugins/woocommerce/templates/single-product/tabs/tabs.php'), call_user_func, woocommerce_tab_manager_tab_content, WC_Tab_Manager->get_product_tab, apply_filters('the_content'), call_user_func_array, WRI->the_wri_content_page_bottom, WRI->wri_display_related, yarpp_related, YARPP->display_related, YARPP_Cache_Bypass->begin_yarpp_time

Any ideas on how to solve this problem? You can see the page where related posts is supposed to show here: http://www.playonloop.com/2014-music-loops/hot-pursuit/ (just above the social bar in the bottom)

Thanks
-Filippo

https://wordpress.org/plugins/yet-another-related-posts-plugin/