diff --git a/cmd/camino_messenger_bot.go b/cmd/camino_messenger_bot.go
index 2bf8ce02..4201c60a 100644
--- a/cmd/camino_messenger_bot.go
+++ b/cmd/camino_messenger_bot.go
@@ -28,9 +28,29 @@ var rootCmd = &cobra.Command{
 }
 
 func rootFunc(cmd *cobra.Command, _ []string) error {
-	configReader := config.NewConfigReader(cmd.Flags())
+	configReaderLogger, err := zap.NewProduction()
+	if err != nil {
+		return fmt.Errorf("failed to create config-reader logger: %w", err)
+	}
+
+	sugaredConfigReaderLogger := configReaderLogger.Sugar()
+	defer func() { _ = sugaredConfigReaderLogger.Sync() }()
+
+	configReader, err := config.NewConfigReader(cmd.Flags(), sugaredConfigReaderLogger)
+	if err != nil {
+		return fmt.Errorf("failed to create config reader: %w", err)
+	}
+
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	cfg, err := configReader.ReadConfig()
+	if err != nil {
+		return fmt.Errorf("failed to read config: %w", err)
+	}
+
+	sugaredConfigReaderLogger.Sync()
 
-	var err error
 	var zapLogger *zap.Logger
 	if configReader.IsDevelopmentMode() {
 		zapLogger, err = zap.NewDevelopment()
@@ -46,15 +66,6 @@ func rootFunc(cmd *cobra.Command, _ []string) error {
 
 	logger.Infof("App version: %s (git: %s)", Version, GitCommit)
 
-	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
-	defer stop()
-
-	cfg, err := configReader.ReadConfig(logger)
-	if err != nil {
-		logger.Error(err)
-		return err
-	}
-
 	app, err := app.NewApp(ctx, cfg, logger)
 	if err != nil {
 		logger.Error(err)
diff --git a/config/config_reader.go b/config/config_reader.go
index bc1b4da8..20bd1dee 100644
--- a/config/config_reader.go
+++ b/config/config_reader.go
@@ -26,15 +26,16 @@ var (
 
 type Reader interface {
 	IsDevelopmentMode() bool
-	ReadConfig(logger *zap.SugaredLogger) (*Config, error)
+	ReadConfig() (*Config, error)
 }
 
 // Returns a new config reader.
-func NewConfigReader(flags *pflag.FlagSet) Reader {
+func NewConfigReader(flags *pflag.FlagSet, logger *zap.SugaredLogger) (Reader, error) {
 	return &reader{
-		viper: viper.New(),
-		flags: flags,
-	}
+		viper:  viper.New(),
+		flags:  flags,
+		logger: logger,
+	}, nil
 }
 
 type reader struct {
@@ -47,9 +48,7 @@ func (cr *reader) IsDevelopmentMode() bool {
 	return cr.viper.GetBool(flagKeyDeveloperMode)
 }
 
-func (cr *reader) ReadConfig(logger *zap.SugaredLogger) (*Config, error) {
-	cr.logger = logger
-
+func (cr *reader) ReadConfig() (*Config, error) {
 	cr.viper.SetEnvPrefix(envPrefix)
 	cr.viper.AutomaticEnv()
 	cr.viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
diff --git a/config/config_reader_test.go b/config/config_reader_test.go
index 6c758bd5..bfeecdd2 100644
--- a/config/config_reader_test.go
+++ b/config/config_reader_test.go
@@ -62,10 +62,11 @@ func TestReadConfig(t *testing.T) {
 
 	for name, tt := range tests {
 		t.Run(name, func(t *testing.T) {
-			cr := NewConfigReader(tt.flags)
+			cr, err := NewConfigReader(tt.flags, zap.NewNop().Sugar())
+			require.NoError(t, err)
 			tt.prepare(t, cr.(*reader))
 
-			config, err := cr.ReadConfig(zap.NewNop().Sugar())
+			config, err := cr.ReadConfig()
 			require.ErrorIs(t, err, tt.expectedErr)
 
 			require.NoError(t, unsetEnvFromMap(envPrefix, rawMap))
diff --git a/examples/config/camino-messenger-bot-supplier-camino.yaml b/examples/config/camino-messenger-bot-supplier-camino.yaml
index 573b2547..8832908c 100644
--- a/examples/config/camino-messenger-bot-supplier-camino.yaml
+++ b/examples/config/camino-messenger-bot-supplier-camino.yaml
@@ -86,7 +86,7 @@ partner_plugin:
 
 
 
-### RPC server (NOT USED FOR SUPPLIER BOT)
+### RPC server (NOT USED FOR SUPPLIER BOT IN THIS VERSION)
 # rpc_server:
 #     enabled: false
 
diff --git a/examples/config/camino-messenger-bot-supplier-columbus.yaml b/examples/config/camino-messenger-bot-supplier-columbus.yaml
index bb91b593..f6cd62ab 100644
--- a/examples/config/camino-messenger-bot-supplier-columbus.yaml
+++ b/examples/config/camino-messenger-bot-supplier-columbus.yaml
@@ -86,7 +86,7 @@ partner_plugin:
 
 
 
-### RPC server (NOT USED FOR SUPPLIER BOT)
+### RPC server (NOT USED FOR SUPPLIER BOT IN THIS VERSION)
 # rpc_server:
 #     enabled: false