Version 678 from github is displaying results in SSMS query window as expected but not creating a table, using the following commands:
USE DBAResources; GO EXEC dba.sp_BlitzCache @Top=10, @OutputDatabaseName = 'DBAResources', @OutputTableName = 'dba.BlitzCacheResults';
BlitzCache is compiled as stored procedure dba.sp_BlitzCache in database DBAResources. Note the use of the non-dbo schema for the stored procedure and the table.
Running on SQL Server 2016 SP 1 Standard.