Add section for invalid states

Author: LauraBeatris

docs/organizations/overview.mdx

@@ -172,3 +172,11 @@ If Clerk's prebuilt components don't meet your specific needs or if you require
 - [Creating an infinite paginated list of memberships](/docs/organizations/viewing-memberships)
 - [Inviting users to an organization](/docs/organizations/inviting-users), which also includes code for creating a custom list of invitations
 - [Managing memberships](/docs/organizations/managing-roles), which includes code for updating and deleting a user's membership, for inviting a user, and for creating a custom list of memberships, invitations, and requests
+
+## Invalid states
+
+Organizations can enter invalid states under certain conditions. Here are the common scenarios you should be aware of:
+
+### Missing member with elevated permissions
+
+An organization becomes invalid when it has no members with the following elevated permissions: `org:sys_memberships:read`, `org:sys_memberships:manage`, and `org:sys_profile:delete`. This typically occurs when removing the last admin or downgrading their role.