Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /data/2/0/20f7efe3-3300-48e6-acb1-3930137b6fc0/studio21.sk/sub/ucebne/index.php:178
Stack trace:
#0 /data/2/0/20f7efe3-3300-48e6-acb1-3930137b6fc0/studio21.sk/sub/ucebne/index.php(178): in_array(1, NULL)
#1 {main}
thrown in
/data/2/0/20f7efe3-3300-48e6-acb1-3930137b6fc0/studio21.sk/sub/ucebne/index.php on line
178