PC Age report graph

Hello everyone,

I’ve been trying to create a report to group those PCs that  are of certain age, but I haven’t been able to do so. 

I was following these instructions: https://www.symantec.com/connect/forums/age-computer-and-form-factor-report but the filter expressions tab, doesn’t let me put the same information. I just want to do a count of the PCs that are of certain age.

I’ve also cloned the “Age by BIOS date” report and still can’t modify successfully nor get the report view I need (a graph).

I’ve tried to create a new report and modify an existing one and whenever I do a modification, it’ll show this error:

An unexpected SQL error occurred when retrieving the schema from the RawSqlDataSource

Any ideas? Thank you!