Chyba: Query error:Illegal mix of collations (cp1250_general_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '='

Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in /var/www/vhosts/stormik.cz/httpdocs/v1/inc/pages/detail.php on line 16

Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/stormik.cz/httpdocs/v1/inc/bin/page.php:87) in /var/www/vhosts/stormik.cz/httpdocs/v1/inc/pages/detail.php on line 17