Java iView Runtime Error in BEx Designer

Hi,

Through analyzer, Query is working absolutely fine

When trying to run a query via the query designer I get the two messages :

1.In development

Java iView Runtime

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An exception occured while processing your request.

If this situation persists,please contact your system administrator

2.and in Quality

503 Service Unavailable

Application Stopped

Thanking you,

Tarun Brijwani.