Upgrade error from 5.7.4.2

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I have a serious problem and don't understand why I am getting this on the update:
Doctrine\Common\Proxy\AbstractProxyFactory::getProxyDefinition() [<a href='function.require'>function.require</a>]: Failed opening required '/home/mychu0/public_html/fscbuffalofootball.com/application/config/doctrine/proxies/__CG__ConcreteCoreFileStorageLocationStorageLocation.php' (include_path='/home/mychu0/public_html/fscbuffalofootball.com/concrete/vendor:.:/usr/lib/php:/usr/local/lib/php')

 
A3020 replied on at Permalink Reply
A3020
Go to /index.php/dashboard/system/environment/entities and refresh the Doctrine proxy classes.

And check the permissions for that path! They need to be readable by the webserver.
lkeefer replied on at Permalink Reply
Now i have this error:

An exception occurred while executing 'select pkgID, pkgName, pkgIsInstalled, pkgDescription, pkgVersion, pkgHandle, pkgDateInstalled from Packages where pkgIsInstalled = ? order by pkgID asc' with params [1]: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'mychu0_conc492.Packages' doesn't exist
A3020 replied on at Permalink Reply
A3020
The error explains pretty well what's going on. A table seems to be missing in your database. ("Packages").