Options layoutdesign error

Hello
that may be the cause of the emergence and consequences of the following errors in this place:
Warning: fopen () [function.fopen]: Filename can not be empty in /home/komitet/domains/szansadladopiewa.pl/public_html/templates/hot_politics/elements/tadmin.php on line 73

Warning: fread () expects parameter 1 to be resource, boolean given in /home/komitet/domains/szansadladopiewa.pl/public_html/templates/hot_politics/elements/tadmin.php on line 74

Warning: fclose () expects parameter 1 to be resource, boolean given in /home/komitet/domains/szansadladopiewa.pl/public_html/templates/hot_politics/elements/tadmin.php on line 75

Go to joomla global configuration and level down value of "Error Reporting" parameter, that are just harmless warnings