I have just done multi-site, have errors – help pls :)

Hi – i have done a multisite – chosen sub-domain, added the dns wildcard – did everything as instructed.
But it is giving me:

Warning: Invalid argument supplied for foreach() in /hermes/bosoraweb001/b27/ipg.thepsychologieplayho/myprojack/wp-content/themes/hirebee/includes/custom-forms.php on line 32 Warning: ksort() expects parameter 1 to be array, null given in /hermes/bosoraweb001/b27/ipg.thepsychologieplayho/myprojack/wp-content/themes/hirebee/includes/custom-forms.php on line 54 Warning: Invalid argument supplied for foreach() in /hermes/bosoraweb001/b27/ipg.thepsychologieplayho/myprojack/wp-admin/includes/plugin.php on line 1515

Please help anyone 🙂