error on install

Issue Summary

I've installed this on several sites, and not had issue.

On this new site, with a database prefix, I get the following:

user warning: Table 'themegeeks.comments' doesn't exist query: select c1.cid, concat('0,', if(c1.pid <> 0, concat(c1.pid, ','),'') ) as parents from comments c1 in /home/virtual/site32/fst/var/www/html/sites/all/modules/comment_subscribe/comment_subscribe.module on line 428.
user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'left join z_commentsubscribe cs on c1.cid = cs.cid where cs.subscribe is null' at line 2 query: insert into z_commentsubscribe (cid, parents, subscribe, subscribenode) left join z_commentsubscribe cs on c1.cid = cs.cid where cs.subscribe is null in /home/virtual/site32/fst/var/www/html/sites/all/modules/comment_subscribe/comment_subscribe.module on line 443.

it's looking for themegeeks.comments, when it should be looking for drupal_comments.

this was immediately after enabling module.