Ok, I found where was the problem and where is the problem now.
Because I am using Pi0 with Midori, with oryginal file the compliments were not show on the mirror but I was able to see them thru LAN.
So I found the solution to change:

if (this.config.remoteFile != null) {
                this.complimentFile((response) => {
                        this.config.compliments = JSON.parse(response);
                });
        }

to:

         if (this.config.remoteFile != null) {
                this.complimentFile(
                        function(response){
                                this.config.compliments = JSON.parse(response);
                });
        }

and yes, that make my compliments shown on mirror but in same time the text is only from compliments.js file.
So now, to see the compliments I have to copy own text to .js file :(

That is the problem.

I tried to change

remoteFile: null,

for remoteFile: ‘compliments.json’ previously but, as you know, did not help.
Now I came back to the oryginal file, saved your compliments as json file in Notepad++ as you wrote, and…
IT IS WORKING!!!

Thank you so much!!!
F…ck, so many time I spent tring different solutions and finaly it works.
One more time thank you for attention and help!
The module - great job!!

Thank you for trying and helping but I copied your setup but still the same thing.

Does compliments.json file has to be somehow written as json file? Or I can create new text file in nano and save it as compliments.json file? Does it need any special rights?
Can you attach your .json file here so I can download and place it in the /compliments/ folder?

Here is list of my files in compliments folder

I have “ in oryginal file so I just copied it. I also tried with ' but without luck.

The compliments.json file looks like:

{
    "anytime" : [
        "Dziala!"
    ],
    "morning" : [
        "Good morning, sunshine!",
        "Who needs coffee when you have your smile?",
        "Go get 'em, Tiger!"
    ],
    "afternoon" : [
        "dfadfafa",
        "dffffffff",
        "fsssss!"
    ],
    "evening" : [
        "2",
        "1",
        "3333"
    ]
}

In compliments.js

Module.register("compliments", {

        // Module config defaults.
        defaults: {
                compliments: {
                        anytime: [
                                "Hey there sexy!"
                        ],
                        morning: [
                                "Good morning, handsome!",
                                "Enjoy your day!",
                                "How was your sleep?"
                        ],
                        afternoon: [
                                "Hello, beauty!",
                                "You look sexy!",
                                "Looking good today!"
                        ],
                        evening: [
                                "Wow, you look hot!",
                                "You look nice!",
                                "Hi, sexy!"
                        ]
                },
                updateInterval: 30000,
                remoteFile: null,
                fadeSpeed: 4000
        },

I see the “anytime” are without "
so I also tried this in …json file but does not work.

Guys where can be mistake:
config.js looks like:

{
module: “compliments”,
position: “lower_third”,
config: {
remoteFile: “compliments.json”
}
},
Remote file placed in ~/MagicMirror/modules/default/compliments
but it still does not work.
I made all following above written steps and nothing - still oryginal compliments are one the mirror.
I have no idea what is wrong.