Mysql – Why am I getting an "unauthorized" error when adding experiences in my NestJS and Angular app, despite guards and backend working with Postman?

Good morning evryone.

I am programming with NestJS and Angular. Every time I log in, I access my profile and add experiences. The problem is that I am using guards to secure the add function. However, when I try to add an experience, it tells me that I am not authorized to do so.

The NestJS backend works with Postman, but when I integrate it with Angular, it doesn’t work. I am sharing my repository here; I have only added the Angular files. If you need it, I can provide you with the NestJS backend as well. Please help me; I have been struggling with this for two days.

https://github.com/dounia06/application-angular?fbclid=IwAR3zRGQMkVl6Hn7fmQjfGkMOS0w-vYi6C8pt6vELYjRkhoGXQepwWa4oxeM