In the below doc link, I can see statement " rhpam-7.6.0-add-ons/rhpam-7.6.0-decision-engine.zip , but it should be like "rhpam-7.6.0-add-ons/rhpam-7.6.0-process-engine.zip."

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Chapter 4:
On the Product Downloads page that opens, navigate to the JBOSS DEVELOPMENT AND MANAGEMENT section, and click Red Hat Process Automation Manager.
On the Software Downloads page, download Red Hat Process Automation Manager 7.6.0 Add-Ons (rhpam-7.6.0-add-ons.zip).
Extract rhpam-7.6.0-add-ons.zip and then extract the Drools runtime environment JAR files located in rhpam-7.6.0-add-ons/rhpam-7.6.0-decision-engine.zip.

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https://access.redhat.com/documentation/en-us/red_hat_process_automation_manager/7.6/html-single/integrating_red_hat_codeready_studio_with_red_hat_process_automation_manager/index

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Please make the below changes as well:

From
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Download the decision engine:

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To
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Download the process engine:

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