Data Manager Connections

[wyconian]

Hi

I've kind of screwed up my catalog and now I can't open it when I try I get the following error message

1. ERROR
DS-CAT-E536: Template '(NONE)' is referenced, but is not in the catalog or package.
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2. ERROR
DS-CAT-E406: Lookup 'D_ATS_ENTITY_TYPE' cannot be validated.
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3. ERROR
DS-CAT-E307: Error connecting to the catalog. Driver 'ORACLE', item string 'cognos_metadata/~84062DD3DA9239F6F4E2DB904B21CFA459@BICM

I think I know what's happened and how to correct it but any ideas on how I can get into the catalog to do this?

Any help much appreciated.

Thanks