The purpose of this study is to test the safety of the anti-cancer immunotherapy drug called nivolumab in patients with cancer and autoimmune disorders. This study is part of a larger study that looks at several different autoimmune disorders including Systemic lupus erythematosus, Dermatomyositis/systemic sclerosis, Multiple sclerosis, Rheumatoid arthritis, Ulcerative colitis, Crohn's disease, Sjogren's syndrome, Psoriasis, Psoriatic arthritis or other autoimmune diseases not specified.