No such column 'ContractId' on entity 'Opportunity'
|Knowledge Article Number||000213295|
|Description||If you have ContractID being used in any of record or fast elements in flow while updating opportunity,
While running a flow "Unhandled Fault" is displayed.
On checking debug log it specifies, No such column 'ContractId' on entity 'Opportunity'
|Resolution||By default Contract field on Opportunity is hidden from all profiles.
In order to make it visible follow the steps
Make the contract ID visible on Opportunity Object
Now repeat the testing and you will find that the error does not occur anymore