Caused by: org.xwiki.cache.CacheException: Cache with name [org.xwiki.contrib.livedata.exporter] already exist

This is because you end up with two components trying to create caches with the same id, and this is not allowed.

One way to avoid this collision problem is to force this extension to always be installed on root namespace (things like https://github.com/xwiki-contrib/oidc/blob/master/oidc-provider/pom.xml#L41).