2207289 - JOB_CHECK_DDXTT: "Inactive nametab with modeflag space" error

During an upgrade the tool stops in MAIN_SHDIMP/SUBMOD_SHD2_RUN/JOB_CHECK_DDXTT phase with error message in PCHKXTT.ELG log file.

The error message given below is just an example,

Directory: <DIR_PUT>/log

=========================
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CHECK DDXTT FOR SPACE-MODEFLAGS ERRORS and RETURN CODE in RSUPG_DDXTT_CHK.<SID>
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4 ETG011 " "
4 ETG036 Module name....: "RSUPG_DDXTT_CHK"
4 ETG040 Start time.....: "10.08.2015" "13:14:05"
4 ETG011 " "
4 ETG039 -------------------------------------------------------------------------
2EETG013 "Inactive nametab with modeflag space" "found for DB-object" "RSTT_SX_TSCEN_HIER"
2EETG011 "Contact SAP-support to solve the issue."
2EETG013 "Inactive nametab with modeflag space" "found for DB-object" "RSTHIERNODE"
2EETG011 "Contact SAP-support to solve the issue."
2EETG013 "Inactive nametab with modeflag space" "found for DB-object" "RSSEM_S_BAPI_STRUCT"
2EETG011 "Contact SAP-support to solve the issue."
2EETG013 "Inactive nametab with modeflag space" "found for DB-object" "RSSH_SX_HTABS"
2EETG011 "Contact SAP-support to solve the issue."
2EETG013 "Inactive nametab with modeflag space" "found for DB-object" "RSSH_SX_SUBTREEHTABS"
2EETG011 "Contact SAP-support to solve the issue."
2EETG013 "Inactive nametab with modeflag space" "found for DB-object" "/BI0/OTHIER_NODE"
2EETG011 "Contact SAP-support to solve the issue."
===========================

Upgrade of ABAP/Dual stack system using SUM tool

DDIC_ACTIVATION, ACT_TRANS, ACT_UPG ,  Inactive nametab, SUM, Upgrade, ABAP, Activation, ACTUPG, update, Dual stack, ABAP, EHP , JOB_CHECK_DDXTT, SUBMOD_SHD2_RUN, PARDIST_SHD, , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem