ERROR: HikariPool-1 - Connection is not available, request timed out after 10000ms

I am developing an API... and after requested several endpoints the server show me this message... WARN: SQL Error: 0, SQLState: null Jun 24, 2016 9:51:45 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions ERROR: HikariPool-1 - Connection is not available, request timed out after 10000ms. Jun 24, 2016 9:51:45 PM com.healthymama.utils.DEVLoggingFilter log INFO: 967 * Server responded with a response on thread grizzly-http-server-2 The project is made with hibernate, mysql and Hikari... Could you help me? Thanks! Here the configuration: url = String.format("jdbc:mysql://%s:%s/%s?autoReconnect=true", host, port, bundle.getString("db.database")); configuration .setProperty("hibernate.order_updates", "true") .setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect") .setProperty("hibernate.hbm2ddl.auto", "update") .setProperty("hibernate.connection.provider_class", "com.zaxxer.hikari.hibernate.HikariConnectionProvider") .setProperty("hibernate.hikari.dataSourceClassName", "com.mysql.jdbc.jdbc2.optional.MysqlDataSource") .setProperty("hibernate.hikari.dataSource.url", url) .setProperty("hibernate.hikari.dataSource.user", username) .setProperty("hibernate.hikari.dataSource.password", password) .setProperty("hibernate.hikari.dataSource.cachePrepStmts", "true") .setProperty("hibernate.hikari.dataSource.prepStmtCacheSize", "250") .setProperty("hibernate.hikari.dataSource.prepStmtCacheSqlLimit", "2048") .setProperty("hibernate.hikari.minimumIdle", "5") .setProperty("hibernate.hikari.minimumIdle", "5") .setProperty("hibernate.hikari.maximumPoolSize", "10") .setProperty("hibernate.hikari.idleTimeout", "30000") .setProperty("hibernate.hikari.connectionTestQuery", "SELECT 1") .setProperty("hibernate.hikari.connectionTimeout", "10000");