Database error encountered

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /var/www/htdocs/sites/308/public_html/components/com_jcalpro/include/dblib.php on line 74

Warning: mysql_free_result(): supplied argument is not a valid MySQL result resource in /var/www/htdocs/sites/308/public_html/components/com_jcalpro/include/dblib.php on line 115

Warning: Invalid argument supplied for foreach() in /var/www/htdocs/sites/308/public_html/components/com_jcalpro/config.inc.php on line 376

Database error encountered

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /var/www/htdocs/sites/308/public_html/components/com_jcalpro/include/dblib.php on line 95