From Cisco:
%OSPF-4-BADLSATYPE: Invalid lsa: [chars] Type [dec], LSID [int] from [int], [int], [chars]
Explanation: The router has received a link-state advertisement (LSA) with an invalid LSA type. The cause is either memory corruption or unexpected behavior on a router.
Recommended Action: From a neighboring address, locate the problem router and reboot it. To determine what is causing this problem, call your Cisco technical support representative for assistance.