Error in MAIN_SHDRUN/ACT_UPG Phase

Hi Expert,

We are upgrade our System from ERP 6 To EHP 8 for ERP 6
our platform is Windows 2012 and SQL database

we are continue in upgrade to phase Current Phase: MAIN_SHDRUN/ACT_UPG
but we are received the following error:
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Directory: D:\usr\sap\UPG\SUM\abap\log
Name: ACTUPG.ELG


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DDIC ACTIVATION ERRORS and RETURN CODE in D:\usr\sap\UPG\SUM\abap\log\SAPA-10001INUIEAAP01.UPG
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<NO ERROR LINES FOUND, BUT HIGHEST EXIT CODE WAS: "8">

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DDIC ACTIVATION ERRORS and RETURN CODE in SAPA731ESI.UPG
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3 EDT014XActivate dependent table "FAGLPOSX"
2WEDT191 Enhancement category "3" possible, but include or subty. not yet classified
1EEDT963 Field "CPUDT" in table "FAGLPOSX" is specified twice
3 EDT015 Dependent table "FAGLPOSX" was not activated
1EEDO519 "Table" "FAGLPOSX" could not be activated

3 EDT014XActivate dependent table "MCEKPV"
2WEDT191 Enhancement category "3" possible, but include or subty. not yet classified
1EEDT304 Foreign key "MCEKPV"-"SPDNR" (More foreign key fields than check table fields)
3 EDT015 Dependent table "MCEKPV" was not activated
1EEDO519 "Table" "MCEKPV" could not be activated
1 ETP111 exit code : "8"
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Kindly aid us ASAP
Connection is opening
Regards
Said Shepl