ISE is thrown during sorting by Referral enabled on the Silo entity page

[abaranowska1]

Bug description

ISE is thrown during sorting by Referral enabled on the Silo entity page

{type: "https://www.jhipster.tech/problem/problemwithmessage", title: "Internal Server Error",…} detail: "Unable to locate Attribute with the the given name [referralEnabled] on this ManagedType [org.benetech.servicenet.domain.Silo]; nested exception is java.lang.IllegalArgumentException: Unable to locate Attribute with the the given name [referralEnabled] on this ManagedType [org.benetech.servicenet.domain.Silo]" message: "error.http.500" path: "/api/silos" status: 500 title: "Internal Server Error" type: "https://www.jhipster.tech/problem/problemwithmessage"

To Reproduce
Steps to reproduce the behavior:

1. Log in as admin
2. Go to Silo Entity
3. Sort by Referral enabled

Dev Signoffs

• Unit test added for the core business features at the minimum
• Code review passed
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QA Signoffs

• Passes Acceptance Criteria
• All bug reports fixed/merged/tested
• Regression test cases cycle updated if needed

Product Signoff

• Approved for release