Need help with clan history and clan claim as leader

I am the new leader of the clan and would like to use the history on RoyaleAPI. Now I can’t claim the clan anywhere, can you help me with that? It also says that we can’t use the history because we have to put RoyaleAPI in the clan description. However, this is in our clan description. Why can’t we use the history then?
Clan name is De Gulle Gevers, tag: #90YGYV89