Hi all,
We have Dynamics CRM 2016 on-prem version. We are also using CRM data within custom WCF web service.
On random occurrence, we are getting error 'Value cannot be null. Parameter name: item' for linq queries like 'Context.atos_studentSet.FirstOrDefault(d => d.atos_studentNumber == stdNumber)'.
If we debug this code locally then there is no error.
Any inputs will be highly appreciated.

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