News Index problems

Hi community,

I would like to implement an Index for news with query-based automatic classification.

- The index is pointing to the standard km-news-folder (/documents/news).

- It has "standard" crawler parameters.

- I gave permissions to both folders the km-news-folder and the index-folder.

- Further i defined the search querys which check for the document title to classify.

I got crawler/index reciever errors with some pdf and xml files (some work 0o).

Errors:

"/documents/News/business.pdf: HTTP Status Code 500: Internal Server Error (Errorcode 6500) - com.sapportals.wcm.WcmException: HTTP Status Code 500: Internal Server Error (Errorcode 6500)"

"AbstractTrexIndex: indexing some of the resources failed com.sapportals.wcm.service.indexmanagement.IndexErrorContainerException: AbstractTrexIndex: indexing some of the resources failed"

"com.sapportals.portal.prt.runtime.PortalRuntimeException: Access is denied: pcd:portal_content/every_user/general/eu_role/com.sap.km.home_ws/com.sap.km.hidden/com.sap.km.urlaccess/com.sap.km.docs - user: Guest, "

Someone knows what i missed to configure??

greets