Hi
You can know which uiconf id you have only from the KMC in the studio tab
Sent a link in previous reply
Your attached config is incorrect
use this code using your uiconf which was created 3 month ago (v2.44) which I suggest to upgrade via your KMC account:
KPPlayerConfig config = new KPPlayerConfig("http://cdnapi.kaltura.com", "35337951", "303932").setEntryId("0_tjrn5awh");