[support] mysite module : user warning: error in your SQL syntax near '* FROM cache_content'

Hello,

i am getting a warning.

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 '* FROM cache_content' at line 1 query: DELETE * FROM cache_content in /home/cmswebsi/public_html/webserver9/lstwtnew/includes/database.mysql.inc on line 172.

i found that it is appearing due to the line code in mysite.module

<?php $data[$item->position][$i]['output'] = module_invoke('mysite_type', $item->type .'_data', $item->type_id, $settings); ?>

if i place @ operator, this warning gets disappear.

<?php $data[$item->position][$i]['output'] = @module_invoke('mysite_type', $item->type .'_data', $item->type_id, $settings); ?>

Please tell me what is the reason behind this and provide the solution(it's urgent :( ).

Thanks in advance, sweetie