ERROR: “Couldn’t create script at this time. Please try again at a later time.”
If you ever try to create a new script within the Adwords Scripts Editor and get this error, chances are the account you are logged in with does not have at least Standard access level permissions.
You can only create a new script if you have admin or standard account access level.
So, if you are experiencing this issue, the best way to resolve it is by logging in with another account that has the right privileges.