One of our clients uses a cloud archive solution for Group Wise 7. The below link has been followed but the client is seeing issues running a GW archival tool.

I appreciate the issue probably lies with the tool, but the logs are reporting the following error:

Error: Message : String was not recognized as a valid DateTime. .
Stack Trace:
at System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles)
at System.Convert.ToDateTime(String value, IFormatProvider provider)
at GwArchival.Application.ArchivalManager.ArchiveAcco unt(Account& iAccount, String groupWiseGuid)
at GwArchival.Application.ArchivalManager.DoArchival( Object state)

Has anyone seen an error message like this before, Is there any changes to the Group Wise environment that might remedy this ?

Any help or suggestions would be much appreciated.