Fatal error: Uncaught TypeError: fread(): Argument #1 ($stream) must be of type resource, bool given in /var/www/vhosts/lama.cz/httpdocs/test1/semafor.php:36 Stack trace: #0 /var/www/vhosts/lama.cz/httpdocs/test1/semafor.php(36): fread() #1 /var/www/vhosts/lama.cz/httpdocs/prg/prg_test1/main.php(183) : eval()'d code(3): include('...') #2 /var/www/vhosts/lama.cz/httpdocs/prg/prg_test1/main.php(183): eval() #3 /var/www/vhosts/lama.cz/httpdocs/test1/index.php(10): include('...') #4 {main} thrown in /var/www/vhosts/lama.cz/httpdocs/test1/semafor.php on line 36