Affiliate Plugin giving database errors

Hi all,

While it does not seem to break anything visibly, I have been getting lots of database errors in my error logs, like the following:

[28-Mar-2011 05:36:39] WordPress database error Table 'pbs_wrdpr.wp_358_affiliatereferrers' doesn't exist for query SELECT * FROM wp_358_affiliatereferrers WHERE user_id = 13 AND period = '201103' ORDER BY referred DESC LIMIT 0, 15 made by wp_dashboard, do_meta_boxes, call_user_func, affiliatedashboard->dashboard_aff_report

[28-Mar-2011 05:36:40] WordPress database error Table 'pbs_wrdpr.wp_358_affiliatedata' doesn't exist for query SELECT * FROM wp_358_affiliatedata WHERE user_id = 13 ORDER BY period DESC LIMIT 0, 18 made by do_action, call_user_func_array, affiliatedashboard->ajax__aff_getdashstats

Any idea what is going on there?