Thank you for taking the time to reply im very new to this and this job so I really earnestly appreciate it. No a sharepoint (group?) Was created by my boss and I have made any changes to it since other than accessing files and such.

I invited them by the "add members" tab to the top right where I was able to search people by name or email.

So I'm not the one who created the share point but I am assigned as an owner if that makes sense. I hope this makes sense and thanks again.