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Adec_create failed

Hi, we use DM8168, RDK4.0.

when call Adec_create, it produced core dump as following:
#0 0x00148d00 in RpeClient_findClientConfig (name=0x163f84 "AAC_AENC_TI", clientCfgRet=0x64b19cd8) at rpecore/rpe_client.c:743
#1 0x00147da0 in Rpe_create (name=0x163f84 "AAC_AENC_TI", instAttr=0x64b19d20, createParams=0x4a72fc, clientHandlePtr=0x4a72f0) at rpecore/rpe_client.c:181
#2 0x001085e4 in Audio_createAacEncAlgorithm (ctxMem=0x4a72d0, pPrm=0x64b19d80) at rpe_audio.c:202
#3 0x0009d2cc in snd_seq_query_subscribe_get_time_update (pPrm=0x64b19d80) at ti_audio.c:304

what's the problem?
Thanks.