fix: fixing client nil pointer

v1/client/client.go

@@ -189,7 +189,10 @@ func (wsClient *SafeWebsocketClient) connect() error {
 	})
 
 	wsClient.mu.WriteHandler(func() error {
+		if wsClient.conn != nil {
 			wsClient.conn.Close()
+		}
+
 		ctx, cancel := context.WithCancel(context.Background())
 		wsClient.ctx = ctx
 		wsClient.cancel = cancel