Error after update to 2.14.0 (2 replies)

I tried automatically updating to version 2.14.0 as prompted by piwik this morning. After clicking update automatically the page hung while it was loading and stayed loading for a number of minutes. FInally I just refreshed the page and now I get this error

"Class Piwik\Measurable\Type\TypeManager does not exist"

every time I try to log into Piwik. Nothing is working anymore. Please help!

Thanks!