Nginx and php error

Hello,

I have a phpnuke site, When i enter the admin area and try to submit a new post, it shows the following errors :

Warning: Invalid argument supplied for foreach() in /home/taktaran/public_html/modules/News/admin/index.php on line 2027

Warning: array_merge() [function.array-merge]: Argument #1 is not an array in /home/taktaran/public_html/modules/News/admin/index.php on line 2033

Warning: array_filter() expects parameter 1 to be array, null given in /home/taktaran/public_html/modules/News/admin/index.php on line 2055

Warning: sort() expects parameter 1 to be array, null given in /home/taktaran/public_html/modules/News/admin/index.php on line 2057

Warning: Invalid argument supplied for foreach() in /home/taktaran/public_html/modules/News/admin/index.php on line 2059

Warning: implode() [function.implode]: Invalid arguments passed in /home/taktaran/public_html/modules/News/admin/index.php on line 207
sale.asrevpn: nuke 8.3

How the problem is resolved ?

i use Nginx 1.6.0 - PHP 3.5.27 - nuke 8.3