2807274 - AFL Error Exception [423] while calling HANA PAL procedure PAL_DECISION_TREE

When calling HANA PAL procedure PAL_DECISION_TREE, an error similar to the following is generated:

AFL error: "<SCHEMA_NAME>"."TABLE_NAME=>PAL_*****": line 9 col 3 (at pos 337): "SCHEMA_NAME"."TABLE_NAME=>PAL_PMML_TRAIN": line 14 col 1 (at pos 659): search table error: _SYS_AFL.AFLPAL:DECISIONTREE_ANY: [423] (range 3) AFL error exception

The indexserver_alert or scriptserver_alert trace contains an error similar to the following:

indexserver_alert_gdssaphana01.trc

[119912]{237046}[29/138168642] 2019-06-18 06:50:51.217233 e cePlanExec       cePlanExecutor.cpp(08272) : Error during Plan execution of model SHS::_SYS_AFL:_SYS_SS_CE_6867033_vers3_lang12_type1_139801785780224:2_INS (t -1), reason: _SYS_AFL.AFLPAL:DECISIONTREE_ANY: [423] (range 3) AFL error exception: exception 73001258: PAL error[73001258]:The number of classes less than 2.

SAP HANA DATABASE 1.0 using Predictive Analytics Library

SAP HANA DATABASE 2.0 using Predictive Analytics Library

Exception 423, C4.5, DECISION_TREE, DECISIONTREE, exception 73001258, PAL error[73001258], The number of classes less than 2 , KBA , HAN-DB-AFL-PAL , SAP HANA Predictive Analysis Library , Problem