cannot set up more than two items

I've successfully set up the door bell camera and one indoor/outdoor camera. I am now unable to set up any additional indoor/outdoor cameras. The camera says it is ready for set up but when I go to proceed with the process, it says something went wrong and to try again later. I have 3 more additional cameras to set up. I've tried different ones with no luck. I am thinking this is an iOS problem. I'm running iOS 15.5. Please help because I just bought this entire system and I'm unable to set up everything. I've chatted with support multiple times and no one seems to understand how to assist me.