#37 error while executing serviceedit.php

[Anonymous]

If i execute serviceedit.php or hostsedit.php i get the
following error messages:
Warning: Invalid argument supplied for foreach()
in /srv/www/htdocs/nagat-1.0a2/serviceedit.php on line 88
Warning: Invalid argument supplied for foreach()
in /srv/www/htdocs/nagat-1.0a2/hostedit.php on line 102
I can edit the host/service and after saving the changes
the error doesn't occur anymore.