Hello there, sherry27,
Have you tried using a private browser? The error might be browser-related. Let's try using a private window to isolate the error.
- Google Chrome: Ctrl + Shift + N
- Mozilla Firefox: Ctrl + Shift + P
- Safari: Command + Option + P
Once completed, you can log back into your account and do the steps to inactivate the contractor. If it works, you can clear your browser's cache to optimize it. Also, your browser can start from scratch and improve your QuickBooks Online browsing experience.
Check this article for the steps on how to inactivate contractors: Add, edit and inactivate contractors.
Let me know if you have other questions.