Retrieve keys/ Suzuki GSX 750 F

Hello dear ones! I’m new to this forum (Please forgive me if I’m doing something wrong here ) I have a problem, or a question that I hope you can help me: This year I bought my first motorcycle, a Suzuki GSX 750 F. The machine has been on the hump for several years (BJ 96), but that doesn’t bother me. Unfortunately, I only got one key from the seller. The second one is probably lost. Only my buddy noticed. But it works without problems. (I added a picture to illustrate) But since I have concerns about just one defective key, I went to search for blanks. I was told that it’s not a problem… The machine, however, has an immobilizer and the key service gave me the information that he can already get the blanks, the mas Now I am an absolute layman for something like that… Does a 20-year old machine actually have an electronic immobilizer? Does the machine really not run if I don’t clean the WSP and leave the lock on “off”? And where do I get a spare key? I hate to have all the locks replaced. Can someone help me? Thank you in advance and everyone n a good ride Steffi