Hi,
It is my wild guess when I see there is a SSL error from your provided log and a known issue on WebSphere with SSL encryption.
I have not test this with WebSphere Admin console to tell you if this is needed or not. However, if you read the next section 5.1 To manually deploy web applications, it also said that "The WDeploy tool must be used to generate deployable WAR or EAR files before they can be deployed to your web application server."
If in doubt, best to reach SAP BO support for confirmation and resolution on this.
Hope this helps,
Jin-Chong