Error creating invocation code

[Reetik]

Fatal error: Uncaught TypeError: ksort(): Argument #1 ($array) must be of type array, null given in /homes/cityvel/matchfinder.shop/adserver/revive-adserver/lib/max/Admin/Invocation.php:310 Stack trace: #0 /homes/cityvel/matchfinder.shop/adserver/revive-adserver/lib/max/Admin/Invocation.php(310): ksort(NULL) #1 /homes/cityvel/matchfinder.shop/adserver/revive-adserver/www/admin/zone-invocation.php(68): MAX_Admin_Invocation->placeInvocationForm(Array, true) #2 {main} thrown in /homes/cityvel/matchfinder.shop/adserver/revive-adserver/lib/max/Admin/Invocation.php on line 310

 

this is the error im getting after clicking on invocation code!! what to do?

[AlexAung]

Do you still remember how do you solved this issue? I am also facing same issue?

[vanitha]

Can you try this condition
if (is_array($array)) {
    ksort($array);
}