Invisible Axis System

Hello

My question is probably very stupid but I'm stuck... So, I'd like to get out of it.

I don't know why my "absolute marker" axis system is no longer displayed. However, it is not hidden.

Do you know how I can show it again on my part?

I am attaching a screenshot.

/sites/default/files/from_ckeditor/systemeaxe.jpg


systemeaxe.jpg

Sorry for this question. My room was simply very far from my landmark...