I am a newbe and I wonder I could ignore or need to fix the warning messages after a succesfull installation of K2:

warning invalid argument ........ /libraries/joomla/database/database/mysql.php on line 361
warning invalid argument ........ /libraries/joomla/database/database/mysql.php on line 361
warning invalid argument ........ /tmp/install_ ...numbers../script.k2.php on line 68
warning invalid argument ........ /tmp/install_ ...numbers../script.k2.php on line 78

I will appreciate your advice and manual when I need to fix it.