Google mail folder structure/ labels on left gone funny

[Mimen]

Oi, I include a screenshot of this. I'm so afraid to delete one of them in case it deletes the actual emails inside the folder/ label. I don't know whatever they are called labels or folders.

My folders/ labels has gone funny and all starts with the words Google Mail Bin followed by the name of my folders. See image.

Has anyone had the same experience?