B4J Question jRDC2 - I have a problem with running on the VPS server

2018-08-09 22:46:53.807:INFO::main: Logging initialized @223ms to org.eclipse.jetty.util.log.StdErrLog
Aug 09, 2018 10:46:54 PM com.mchange.v2.log.MLog
INFO: MLog clients using java 1.4+ standard logging.
Aug 09, 2018 10:46:54 PM com.mchange.v2.c3p0.C3P0Registry
INFO: Initializing c3p0-0.9.5.2 [built 08-December-2015 22:06:04 -0800; debug? true; trace: 10]
2018-08-09 22:46:54.663:INFO:oejs.Server:main: jetty-9.4.z-SNAPSHOT; built: 2018-05-03T15:56:21.710Z; git: daa59876e6f384329b122929e70a80934569428c; jvm 1.8.0_171-8u171-b11-0ubuntu0.16.04.1-b11
2018-08-09 22:46:54.805:INFO:oejs.session:main: DefaultSessionIdManager workerName=node0
2018-08-09 22:46:54.806:INFO:oejs.session:main: No SessionScavenger set, using defaults
2018-08-09 22:46:54.808:INFO:oejs.session:main: node0 Scavenging every 660000ms
2018-08-09 22:46:54.815:INFO:oejsh.ContextHandler:main: Started o.e.j.s.ServletContextHandler@42f93a98{/,file:///root/www,AVAILABLE}
2018-08-09 22:46:54.819:INFO:oejs.AbstractNCSARequestLog:main: Opened /root/logs/b4j-2018_08_09.request.log
2018-08-09 22:46:54.844:INFO:oejs.AbstractConnector:main: Started ServerConnector@72225131{HTTP/1.1,[http/1.1]}{0.0.0.0:17178}
2018-08-09 22:46:54.845:INFO:oejs.Server:main: Started @1262ms
jRDC is running (version = 2.21)
Aug 09, 2018 10:47:17 PM com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource
INFO: Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 20000, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, contextClassLoaderSource -> caller, dataSourceName -> 1flei9y9x9020hcrt0meo|33a10788, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> com.mysql.jdbc.Driver, extensions -> {}, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, forceSynchronousCheckins -> false, forceUseNamedDriverClass -> false, identityToken -> 1flei9y9x9020hcrt0meo|33a10788, idleConnectionTestPeriod -> 600, initialPoolSize -> 3, jdbcUrl -> jdbc:mysql://127.0.0.1/bazatest?characterEncoding=utf8, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 1800, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 15, maxStatements -> 150, maxStatementsPerConnection -> 0, minPoolSize -> 3, numHelperThreads -> 3, preferredTestQuery -> null, privilegeSpawnedThreads -> false, properties -> {user=******, password=******}, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> true, unreturnedConnectionTimeout -> 0, userOverrides -> {}, usesTraditionalReflectiveProxies -> false ]
Command: query: czytaj2, took: 687ms, client=46.134.141.154
Command: query: czytaj2, took: 6ms, client=46.134.141.154
Command: query: czytaj2, took: 3ms, client=46.134.141.154