Post-upgrade failed 7.5.2 to 7.6.1

This show in log after it shows Post-upgrade failed.

No log is coming.

Tue, 18 Aug 2015 10:33:40 +0000 [Upgrader] - Upgrader v.7.5.0.1 (build 1006) starting

Tue, 18 Aug 2015 10:33:40 +0000 [Upgrader] - Initializig SugarCRM environment

...

Tue, 15 Dec 2015 02:56:30 +0000 [Upgrader] - Stage commit done

Tue, 15 Dec 2015 02:56:30 +0000 [Upgrader] - Stage post starting

Tue, 15 Dec 2015 02:56:30 +0000 [Upgrader] - Initializing SugarCRM environment          //end of log

Many table are missing.

Module Account/Opportunities/Call cannot work properly.

Table missing:

- acl_role_sets

- acl_role_sets_acl_roles

miss.PNG

What should I do to finishing upgrade?

I don't want to reversion.

SugarCRM Enterprise, Version 7.5.2.0

Thanks,

M