Reinstalling with Previously Attached Vault

I am the interim admin for our PDM vault at one of our satelite facilities and one of our users uninstalled his PDM client.  When I reinstalled it I could not attach to the orignial vault.  It appears the vault is still attached and has the comment "Missing Information".  How can I correct this and get him back into the sytem?  Attached is an image of the farthest into the install I can reach.

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