Error Call to a member function lang() on null

[uoe91]

Hello!
I launched my multisite online. But I am seeing an error
Error Call to a member function lang() on null.

Where can I look for a solution? I get the same error when I try to check the content of the page.

Thanks in advance!

[duncanmcclean]

What does your config/statamic/sites.php file look like?

[uoe91]

`<?php

return [

/*
|--------------------------------------------------------------------------
| Sites
|--------------------------------------------------------------------------
|
| Each site should have root URL that is either relative or absolute. Sites
| are typically used for localization (eg. English/French) but may also
| be used for related content (eg. different franchise locations).
|
*/

'sites' => [
    'xyz-com' => [
        'name' => 'xyz-com',
        'locale' => 'en_US',
        'url' => env('XYZSK_URL'),
    ],

    'xyz-pl' => [
        'name' => 'xyz-pl',
        'locale' => 'pl_PL',
        'url' => '/pl/',
    ],

    'xyz-support' => [
        'name' => 'xyz-support',
        'locale' => 'en_US',
        'url' => '/support/',
    ],

    'xyz-pomoc' => [
        'name' => 'xyz-pomoc',
        'locale' => 'pl_PL',
        'url' => '/pomoc/',
    ],

    'trainings' => [
        'name' => 'trainings',
        'locale' => 'en_US',
        'url' => '/',
    ]
],

];`