unexpected error updating to 5.7.5.10

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I remote updated through the dashboard, then this error message appeared. I have no idea what it means:

An unexpected error occurred.

Doctrine\Common\Proxy\AbstractProxyFactory::getProxyDefinition(): Failed opening required '/home/jabberjo/public_html/application/config/doctrine/proxies/__CG__ConcreteCoreFileStorageLocationStorageLocation.php' (include_path='/home/jabberjo/public_html/updates/concrete5.7.5.10_remote_updater/concrete/vendor:.:/usr/lib/php:/usr/local/lib/php:/usr/local/php54/lib/php')

Help appreciated. I was going to try to do a manual update instead, but now can't download the 5.7.5.10 zip file for some reason.