Custom DB issue

Hi,

Im running the latest version of WP Slim stats with the latest version of Custom DB on latest version of WP (4.5.1)

Under circumstances i get a CANNOT CONNECT TO DATABASE error and the error log shows :

WordPress database error Table ‘XXXXXX.wordpresswp_comments’ doesn’t exist for query \r\n\t\t\t\tSELECT comment_author, COUNT(*) comment_count\r\n\t\t\t\tFROM wordpresswp_comments\r\n\t\t\t\tWHERE comment_author_IP = ‘XXX.XXX.XX.XX’ AND comment_approved = ‘spam’\r\n\t\t\t\tGROUP BY comment_author\r\n\t\t\t\tLIMIT 0,1 made by do_action(‘wp_ajax_nopriv_slimtrack’), call_user_func_array, wp_slimstat::slimtrack_ajax, wp_slimstat::slimtrack, referer: http://www.XXX.com/XXX/XX-XXX/

(i replaced real table name and IP for obvious reasons)

I suspect this is a bug since it shouldnt be checking for external database for wordpress comments but the main wordpress db? thats why it cant find the table?

Thanks

https://ww.wp.xz.cn/plugins/wp-slimstat/