When you hit "Exportar volcado", can you dump the database or does not dump not work either? (my question is whether only dumps from the backup utility don't work or whether simple dumps don't work at all). Can you dump it when you use the export feature of phpMyAdmin?
Yes i can export it and the backup its ok...
////////
-- MariaDB dump 10.19 Distrib 10.6.16-MariaDB, for Linux (x86_64)
--
-- Host: localhost Database: congalsa360
-- ------------------------------------------------------
-- Server version 10.6.16-MariaDB
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8mb4 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
--
-- Table structure for table `encuestas`
--
DROP TABLE IF EXISTS `encuestas`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `encuestas` (
`encuesta` int(11) NOT NULL AUTO_INCREMENT,
`usuario` varchar(100) NOT NULL,
`rol` varchar(100) NOT NULL,
`url` varchar(500) DEFAULT NULL,
`nombre` varchar(200) NOT NULL,
`apellidos` varchar(200) NOT NULL,
`hash` varchar(100) NOT NULL,
[.....]