Error in entity based record

We are getting error when accessing the summary view of the Entity Based Record.

The Requested Record Type Is Not Available The record type [identifier=<ID>] does not exist, has been deleted, or you do not have sufficient privileges to access its data.

We started getting this error, when we deleted all the objects of an application and re-imported it.

NOTE : We are able to create new records and are able to access them from site/Tempo. This error is occurring only for the old records.


We are using Appian 17.4 

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