I am not familiar with that app, so I can't say for sure... The summary index may get fed by something you have to enable in the app configuration. If you see the data from your logs get into the index called webintelligence (do a simple search 'index=webintelligence' for the past 24 hours or whatever you think is good to see data), then your data is flowing into Splunk OK. The app may have special filters and queries that expect data certain way - you can either look at its configs and try to see what it expects, post them here or maybe contact Splunk Support, depending on your comfort level.
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