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java.sql.SQLException: Internal error: Cannot obtain XAConnection weblogic.common.resourcepool.ResourceDisabledException: Pool ForumDS is suspended. Cannot allocate resources to applications. It was suspended at Wed Jun 26 23:10:00 GMT+03:00 2019 because of 2 consecutive connect failures. Last connect attempt failed at Wed Jun 26 23:25:31 GMT+03:00 2019 because of weblogic.common.ResourceException: weblogic.common.ResourceException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
 . Last connection created successfully at Wed Jun 26 23:08:54 GMT+03:00 2019.
	at weblogic.common.resourcepool.ResourcePoolImpl.reserveResourceInternal(ResourcePoolImpl.java:395)
	at weblogic.common.resourcepool.ResourcePoolImpl.reserveResource(ResourcePoolImpl.java:356)
	at weblogic.common.resourcepool.ResourcePoolImpl.reserveResource(ResourcePoolImpl.java:343)
	at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:469)
	at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:363)
	at weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:125)
	at weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:77)
	at weblogic.jdbc.jta.DataSource.getXAConnectionFromPool(DataSource.java:1791)
	at weblogic.jdbc.jta.DataSource.refreshXAConnAndEnlist(DataSource.java:1582)
	at weblogic.jdbc.jta.DataSource.getConnectionInternal(DataSource.java:499)
	at weblogic.jdbc.jta.DataSource.getConnection(DataSource.java:483)
	at weblogic.jdbc.common.internal.RmiDataSource.getConnectionInternal(RmiDataSource.java:527)
	at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:513)
	at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:506)
	at net.jforum.DataSourceConnection.getConnection(DataSourceConnection.java:84)
	at net.jforum.JForumExecutionContext.getConnection(JForumExecutionContext.java:160)
	at net.jforum.JForumExecutionContext.getConnection(JForumExecutionContext.java:151)
	at net.jforum.dao.generic.GenericUserDAO.selectById(GenericUserDAO.java:130)
	at net.jforum.dao.oracle.OracleUserDAO.selectById(OracleUserDAO.java:71)
	at net.jforum.repository.SecurityRepository.load(SecurityRepository.java:94)
	at net.jforum.repository.SecurityRepository.load(SecurityRepository.java:112)
	at net.jforum.JForum.service(JForum.java:163)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
	at net.jforum.util.legacy.clickstream.ClickstreamFilter.doFilter(ClickstreamFilter.java:59)
	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:60)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3748)
	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3714)
	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2283)
	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2182)
	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1499)
	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:263)
	at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)