Update rules

[gp]

Both links concerning Special Rules Pertaining to the Swap Forum have issues when clicking on them:

1.can I sell it:

The requested service is temporarily unavailable. It is either overloaded or under maintenance. Please try later.

2. Understanding ivory lay,
The link to endangered species :

404, Page not found

The Page you are looking for doesnt exist or an other error occurred

Can you either delete or update both, much obliged!