Google has officially recognized an issue currently occurring listing a "Unexpected error has occurred" then results in a "500 Error" when attempting to access Drive and/or search for files. Please be patient with us through this as we await further details on the resolution to the issue.
In situations such as this, we recommend checking out Googles "G suite Status dashboard" which can be found here. Then as always you can reach us at email@example.com, for any additional questions regarding an outage or issue as well as deprecated performance for a service.
We once again appreciate continued patience with us, as well as Google through any issues and outages.