fix panic

Author: felipemadero

local/snapshot.go

@@ -331,7 +331,9 @@ func (ln *localNetwork) loadSnapshot(
 			}
 			ln.subnetID2ElasticSubnetID[subnetID] = elasticSubnetID
 		}
-		ln.blockchainAliases = networkState.BlockchainAliases
+		for k, v := range networkState.BlockchainAliases {
+			ln.blockchainAliases[k] = v
+		}
 	}
 	if err := ln.loadConfig(ctx, networkConfig); err != nil {
 		return err

utils/utils.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io/fs"
 	"os"
+	"path/filepath"
 	"time"
 
 	rpcb "github.com/ava-labs/avalanche-network-runner/rpcpb"
@@ -90,7 +91,7 @@ func CheckPluginPath(pluginExec string) error {
 	var err error
 	if _, err = os.Stat(pluginExec); err != nil {
 		if errors.Is(err, fs.ErrNotExist) {
-			return ErrNotExistsPlugin
+			return fmt.Errorf("%s: %w", filepath.Base(pluginExec), ErrNotExistsPlugin)
 		}
 		return fmt.Errorf("failed to stat plugin exec %q (%w)", pluginExec, err)
 	}