This indicates an attack attempt to exploit a File Disclosure vulnerability in Acritum Femitter Server.
The vulnerability is a result of the application's failure to properly sanitize user supplied inputs. A remote attack can exploit this to view files within the context of the application.
Acritum Femitter Server 1.03 and earlier versions.
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Apply the most recent upgrade or patch from the vendor.