Fix chain overfill when failed to get pk

If we overfill the chain the runtime will deadlock between wgA.Wait()
and pushing to the aPKMap chain.
I'd suggest to pushing to the chain only in one place in the goroutine
to exclude the overfilling case.

cmd/convert/process.go

@@ -48,13 +48,18 @@ func process(data *dataIn) error {
 		wgA.Add(1)
 		go func(aName string, wName string) {
 			defer wgA.Done()
+			var aPK a
 			// Get Private Key From Account
 			utils.Log.Info().Msgf("getting private key for account %s from wallet %s", aName, wName)
 			pk, err := iStore.GetPK(wName, aName)
 			if err != nil {
-				aPKMap <- a{name: aName, pk: []byte{}, err: err, wName: wName}
+				utils.Log.Error().Err(err).Msgf("failed to get private key for account %s from wallet %s", aName, wName)
+				aPK = a{name: aName, pk: []byte{}, err: err, wName: wName}
+			} else {
+				utils.Log.Info().Msgf("got private key for account %s from wallet %s", aName, wName)
+				aPK = a{name: aName, pk: pk, err: nil, wName: wName}
 			}
-			aPKMap <- a{name: aName, pk: pk, err: nil, wName: wName}
+			aPKMap <- aPK
 		}(acc.Name, acc.WName)
 	}
 	wgA.Wait()