failed to open dir

Hi Lars,

Thanks for your nice project. I was trying to set it up on PHP docker and it looks fine I was just getting the noAccessMessage fine, but when I unlocked it I got the following:

`


Warning: scandir(content): failed to open dir: No such file or directory in /var/www/html/app/functions.php on line 69



Warning: scandir(): (errno 2): No such file or directory in /var/www/html/app/functions.php on line 69



Warning: Invalid argument supplied for foreach() in /var/www/html/app/functions.php on line 70



Notice: Undefined offset: 1 in /var/www/html/index.php on line 86



Notice: Trying to get property 'path' of non-object in /var/www/html/index.php on line 88



Notice: Trying to get property 'fileName' of non-object in /var/www/html/index.php on line 88



Fatal error: Uncaught TypeError: Argument 1 passed to
str_contains() must be of the type string, null given, called in
/var/www/html/app/functions.php on line 45 and defined in
/var/www/html/app/functions.php:8
Stack trace:
#0 /var/www/html/app/functions.php(45): str_contains(NULL, '.html')
#1 /var/www/html/index.php(88): N2webFolderItem->__construct(NULL,
NULL, 1, true)
#2 {main}
thrown in /var/www/html/app/functions.php on line 8

`

My content folder is inside the app folder. I have tried also to place it on the root but then I get the following:

`


Fatal error: Uncaught Error: Call to undefined function str_starts_with() in /var/www/html/app/functions.php:71
Stack trace:
#0 /var/www/html/index.php(68): N2webFolderItem->__construct('content', 'content', 0)
#1 {main}
thrown in /var/www/html/app/functions.php on line 71

`

I hope this belongs here, it is my first time reporting an issue. Best regards