This sounds like a problem in the data source view.
'BASEENUM_CustVendorBlocked_18441' is a query to get values for an enumeration.
It appears that somewhere there is an dimension that has an attribute which is set to use the values from this query, but there is a missing relationship in the data source view between the query for the dimension and this enumeration query, so ssas does not know how the two queries are supposed to join.
My guess is the cube update process changed the name of the query, but either failed to update the dimension to use the new query name, or failed to update the data source view to link the new query to the dimension table. Either way the query name in the dimension now doesn't match the name of any of the query as set in the CUSTTABLECUBE dimension. To fix this, we need to make these settings match by updating either the dimension, or the data source view.
There are two ways to fix this.
Option A: update the dimension.
Open the data source view and find CUSTTABLECUBE,
check if it has a relation to a query with a name beginning with BASEENUM_CustVendorBlocked. If no, go to option B.
If yes, copy the name of that related query to clipboard.
Open the dimension using CUSTTABLECUBE (probably named Customer).
Find the attribute using the Blocked field (named Invoicing and delivery on hold)
Expand the Name column property
Expand the Source property
Look at the TableID property value, which is probably set to 'BASEENUM_CustVendorBlocked_18441' Replace this value by pasting in the name of the query copied above.
Next expand the KeyColumns collection, and keep expanding the child elements until you've expanded the Source property and made the TableID property visible. Replace the value by pasting in ihe name of the query copied above.
Option B: update the data source view.
open the data source view and find the data source view table for CUSTTABLECUBE. Right click on it in the designer surface and add a new relation.
Set the source table to CUSTTABLECUBE and the destination table to BASEENUM_CustVendorBlocked_18441
Set the source column to BLOCKED and the destination column to ENUMITEMVALUE.
Also check if the VENDTABLECUBE is also missing that relationship. You might have a similar error there too.
Save and redeploy the project. Then process to see if there are any other failures.
Hope this helps.