diff --git a/blockchain/storetopo.go b/blockchain/storetopo.go
index f4ee3685..13044472 100644
--- a/blockchain/storetopo.go
+++ b/blockchain/storetopo.go
@@ -292,6 +292,10 @@ func (chain *Blockchain) Find_Blocks_Height_Range(startheight, stopheight int64)
 	}
 	_, topos_end := chain.Store.Topo_store.binarySearchHeight(stopheight)
 
+	if topos_start == nil || topos_end == nil {
+		return
+	}
+
 	lowest := topos_start[0]
 	for _, t := range topos_start {
 		if t < lowest {
diff --git a/cmd/dero-wallet-cli/easymenu_post_open.go b/cmd/dero-wallet-cli/easymenu_post_open.go
index 218e0560..3afbf12a 100644
--- a/cmd/dero-wallet-cli/easymenu_post_open.go
+++ b/cmd/dero-wallet-cli/easymenu_post_open.go
@@ -16,27 +16,27 @@
 
 package main
 
-import "io"
-import "os"
-import "time"
-import "fmt"
-import "errors"
-import "runtime"
-import "strings"
-
-import "path/filepath"
-import "encoding/json"
-
-import "github.com/chzyer/readline"
-
-import "github.com/deroproject/derohe/rpc"
-import "github.com/deroproject/derohe/globals"
+import (
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/chzyer/readline"
+	"github.com/deroproject/derohe/cryptography/crypto"
+	"github.com/deroproject/derohe/globals"
+	"github.com/deroproject/derohe/rpc"
+	"github.com/deroproject/derohe/transaction"
+)
 
 //import "github.com/deroproject/derohe/address"
 
-import "github.com/deroproject/derohe/cryptography/crypto"
-import "github.com/deroproject/derohe/transaction"
-
 // handle menu if a wallet is currently opened
 func display_easymenu_post_open_command(l *readline.Instance) {
 	w := l.Stderr()
@@ -162,6 +162,7 @@ func handle_easymenu_post_open_command(l *readline.Instance, line string) (proce
 			err := wallet.SendTransaction(reg_tx)
 			if err != nil {
 				fmt.Fprintf(l.Stderr(), "sending registration tx err %s\n", err)
+				fmt.Fprintf(l.Stderr(), "You can register your wallet by sending this RAW tx data to the daemon (DERO.SendRawTransaction):\n%s\n", hex.EncodeToString(reg_tx.Serialize()))
 			} else {
 				fmt.Fprintf(l.Stderr(), "registration tx dispatched successfully\n")
 			}
diff --git a/walletapi/wallet_transfer.go b/walletapi/wallet_transfer.go
index 5170aeb7..f3c4d8cb 100644
--- a/walletapi/wallet_transfer.go
+++ b/walletapi/wallet_transfer.go
@@ -16,33 +16,35 @@
 
 package walletapi
 
-import "fmt"
+import (
+	"encoding/hex"
+	"fmt"
+
+	"github.com/deroproject/derohe/config"
+	"github.com/deroproject/derohe/cryptography/bn256"
+	"github.com/deroproject/derohe/cryptography/crypto"
+	"github.com/deroproject/derohe/rpc"
+	"github.com/deroproject/derohe/transaction"
+)
 
 //import "sort"
 //import "math/rand"
 //import cryptorand "crypto/rand"
 
 //import "encoding/binary"
-import "encoding/hex"
 
 //import "encoding/json"
 
 //import "github.com/vmihailenco/msgpack"
 
-import "github.com/deroproject/derohe/config"
-import "github.com/deroproject/derohe/cryptography/crypto"
-
 //import "github.com/deroproject/derohe/crypto/ringct"
-import "github.com/deroproject/derohe/transaction"
 
 //import "github.com/deroproject/derohe/globals"
-import "github.com/deroproject/derohe/rpc"
 
 //import "github.com/deroproject/derohe/ddn"
 
 //import "github.com/deroproject/derohe/structures"
 //import "github.com/deroproject/derohe/blockchain/inputmaturity"
-import "github.com/deroproject/derohe/cryptography/bn256"
 
 /*
 func (w *Wallet_Memory) Transfer_Simplified(addr string, value uint64, data []byte, scdata rpc.Arguments) (tx *transaction.Transaction, err error) {
@@ -302,10 +304,9 @@ func (w *Wallet_Memory) TransferPayload0(transfers []rpc.Transfer, ringsize uint
 				} else {
 					fmt.Printf("integrtated address, but don't know how to process\n")
 					err = fmt.Errorf("integrated address used, but don't know how to process %+v", addr.Arguments)
+					return
 				}
 			}
-
-			return
 		}
 
 		var dest_e *crypto.ElGamal