Okkkkkkkkk that great !!!
Thank you very much @poopoodice for your indications !
And Thanks a lot @Draco18s and @diesieben07 !
The final json file was not valid, the great is this :
Thanks very much everyone for all ! 😂😃
Write valid JSON?
Get a plugin for your IDE that does syntax checking on json files. I know both Eclipse and IntelliJ have them on their plugin marketplace.
But if you can't be bothered, use https://jsonlint.com/