Sorry, but you did not mention the page in your message https://prnt.sc/1rmh2qp in this topic. Read that.
I checked the contacts page and tried to edit that and don’t see any error https://prnt.sc/1rmh82f
Could you, please, explain in more detail your actions to reproduce the issue or provide video for better understanding.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.