Hi @rene liu
Thank you for reaching out to the Microsoft Q&A Forum.
I understand how frustrating it can be when the "+Add New" button stops responding, especially after you've already tried several troubleshooting steps.
If you’re an admin, you can sign in to the Teams admin center to check the settings. If not, please ask your admin to help you take a look. Once there, go to Teams apps > Manage apps, search for Approvals, and review the Users and groups as well as the Permissions settings to make sure everything looks correct.
If the issue persists after checking these settings, I suggest raising a support ticket.
As a forum moderator, my ability to assist is limited to general guidance — I don’t have access to backend tools or system-level diagnostics needed to fully investigate this issue. Therefore, I recommend raising a support ticket directly with Microsoft 365 Support. Their team has the right tools and permissions to dive deeper into your environment, check for any hidden issues or conflicts, and escalate to the product team if necessary.
To create a support ticket, you need admin privileges. If you are the Microsoft 365 admin of your organization, you can sign in to the Microsoft 365 admin center with your admin account, select Support > Help and support, enter your question, and select Contact support. Otherwise, please refer to How do I find my Microsoft 365 admin? - Microsoft Support.
I appreciate your understanding on this, and I hope they can get this sorted out for you quickly.
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