That seems a rather incomplete malware name for avast.
What is the malware name, the infected file name and where was it found e.g. (malware name, C:\windows\system32\infected-file-name.xxx) ?
Check the avast! Log Viewer (right click the avast ‘a’ icon), Warning section, this contains information on all avast detections.

Program Settings, Chest, allows for the increase in size of the chest and the files size you can put into it, if that wasn’t what you meant by you checked it out later.