Error "Cannot query field "allSignature" on type "Query"."

@Marc, were you able to resolve this? There seems to be a mismatch with the Index naming index: 'allSignatures' and { allSignature { in the query. The easy way to troubleshoot way is to log in to your dashboard, use Webshell to list indexes using Paginate(Indexes()). This should match with the { allSignature { in the query.