Error when executing a K-Means algorithm

I get the below error when I try to run a K-Means algorithm in the Predictive Analysis.

"A critical error occurred:

An error occurred while executing the query. Error details: SAP DBTech JDBC: [423]: liveCache error:  [423] SYSTEM.AFL_WRAPPER_GENERATOR: line 38 col 1 (at pos 1443): liveCache error exception: liveCache error: registration finished with errors, see indexserver trace"

I did check and the SYS schema does contain the table AFL_AREAS_. And I did create the WRAPPER GENERATOR procedure.

I ran the query and the result shows as below.

"Statement 'SELECT * FROM "SYS"."AFL_AREAS_" WHERE AREA_NAME = 'AFLPAL'' successfully executed in 6 ms 385 µs  (server processing time: 0 ms 143 µs)

Fetched 1 row(s) in 0 ms 57 µs (server processing time: 0 ms 0 µs)"

Where could I be going wrong? I checked for any existing threads but couldn't find one.

regards

Bala