Failed to prepare data app Replication task

[Varshini_123]

On Qlik Cloud Data Integration we have connected to Mysql and Amazon redshift . we have also downloaded and installed drivers successfully. The data Connection is also successful. After that when we are trying to prepare and run the data in landing zone we facing an error:

Failed to prepare data app
Replication task: TASK_fUorIaqdr_Rkaq-VYzsYzw on server: local_repsrv failed with fatal error.
Details
Error code: DATA-APP-DESIGN-DATA-APP-PREPARE-FAILED
Trace ID: 0000000000000000a6a7f022f44cd2e4

[TimGarrod]

Hi, can you look at the log for the landing task so we can see what the replication server error is in the gateway?

To do this - Click the "..." menu next to Prepare (in the screenshot below its next to STOP).

Select View logs

You should see the replication task log like the below.  If you navigate to the bottom (click the down arrow), you should see the error.