TrexStore error: index already prepared

Hi Gurus,

While replicating catalog I am getting this error:

[13060] 2015-05-18 11:19:07.917 e index_usage_ IndexUsageCollector.cpp(00954) : Index table call failed Error: TrexStore error: index already prepared(4530)

[13060] 2015-05-18 11:19:07.917 e SERVER_TRACE TRexApiIndexDocuments.cpp(04993) : indexTableLocal _trex:_indexusage~seldsape05-33003: <_trex:_indexusage~seldsape05-33003> is already prepared (3=TPCS_PREPARED). Index call not allowed!

please suggest me how to fix it.