[Plugin: Spider Tracker] Many error entries in error.log

Hello!

I constantly have got many entries in my error.log:

WordPress database error You can't specify target table 'kv_mnm_spider_tracker_log' for update in FROM clause for query DELETE FROMkv_mnm_spider_tracker_logWHEREid= 2 ANDdatetime< (\r\n\t\t\t\t\t\t\t\tSELECT MIN(datetime) FROM (\r\n\t\t\t\t\t\t\t\t\tSELECTdatetimeFROMkv_mnm_spider_tracker_logWHEREid= 2 ORDER BYdatetimeDESC LIMIT 30\r\n\t\t\t\t\t\t\t\t) AS MinSelect\r\n\t\t\t\t\t\t ) made by require, require_once, include, get_header, locate_template, load_template, require_once, wp_head, do_action, call_user_func_array, mnmst_is_bot

I am using PHP4 and MySQL 4.1.22, so whats wrong with plugin? How to eliminate this error reports?

http://ww.wp.xz.cn/extend/plugins/spider-tracker/