I updata from version control ,it error when i view app .who can help me? om.mendix.basis.connectionbus.ConnectionBusException: An exception has occurred for the following request(s): InternalXPathTextGetRequest (depth = 0, amount = 1): //System.QueuedTask[QueueId=$queueId and Status='Idle' and ThreadId=empty] at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.scala:31) Caused by: com.mendix.basis.connectionbus.ConnectionBusException: Exception occurred while retrieving data. at com.mendix.connectionbus.util.SqlExceptionUtils$.getDetailedException(SqlExceptionUtils.scala:25) Caused by: com.mendix.connectionbus.ConnectionBusRuntimeException: Connection is invalid, but it is subject of a transaction. at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.closeConnectionImmediately(JdbcDataStore.java:592) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.execRetrieveQueries(JdbcDataStore.java:207) at com.mendix.connectionbus.connections.jdbc.JdbcDataStore.retrieve(JdbcDataStore.java:125) at com.mendix.connectionbus.retrieve.QueryRequestExecutor.executeQueriesForLocal(QueryRequestExecutor.scala:102) at com.mendix.connectionbus.retrieve.QueryRequestExecutor.executeQueries(QueryRequestExecutor.scala:34) at com.mendix.connectionbus.retrieve.QueryRequestExecutor.execute(QueryRequestExecutor.scala:26) at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$processOqlGetRequest$1(DataStoreCaller.scala:35) at scala.Option.map(Option.scala:242) at com.mendix.connectionbus.retrieve.DataStoreCaller.processOqlGetRequest(DataStoreCaller.scala:32) at com.mendix.connectionbus.retrieve.DataStoreCaller.$anonfun$getResult$1(DataStoreCaller.scala:26) at scala.collection.StrictOptimizedIterableOps.flatMap(StrictOptimizedIterableOps.scala:117) at scala.collection.StrictOptimizedIterableOps.flatMap$(StrictOptimizedIterableOps.scala:104) at scala.collection.immutable.ArraySeq.flatMap(ArraySeq.scala:35) at com.mendix.connectionbus.retrieve.DataStoreCaller.getResult(DataStoreCaller.scala:26) at com.mendix.connectionbus.retrieve.GetRequestHandler.doOtherRequests(GetRequestHandler.scala:68) at com.mendix.connectionbus.retrieve.GetRequestHandler.doRequest(GetRequestHandler.scala:29) at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.scala:28) at com.mendix.connectionbus.ConnectionBusImplBase.doRequest(ConnectionBusImplBase.java:215) at com.mendix.modules.queue.DistributedQueue.claimTask(DistributedQueue.scala:205) at com.mendix.modules.queue.DistributedQueue.$anonfun$acquire$1(DistributedQueue.scala:90) at com.mendix.logging.impl.LogManager.suppressLogMessagesInThreadBelow(LogManager.java:62) at com.mendix.modules.queue.DistributedQueue.acquire(DistributedQueue.scala:74) at com.mendix.modules.queue.TaskQueueExecutor.acquireTask(TaskQueueExecutor.scala:58) at com.mendix.modules.queue.TaskQueueExecutor.run(TaskQueueExecutor.scala:34) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834)