I have the DNN Events module 6.2.1 installed and running on DNN version 7.3.4. Whenever I open the details of an event I get the following exception in the event log:

ModuleId:387

ModuleDefId:106

FriendlyName:

ModuleControlSource:DesktopModules/Events/EventDetails.ascx

AssemblyVersion:7.3.4

PortalID:0

PortalName:The Austin Association for Financial Professionals

UserID:1

UserName:host

ActiveTabID:65

ActiveTabName:Events Calendar

RawURL:/Calendar/Events-Calendar/ctl/Details/Mid/387/ItemID/undefined?1426615408060

AbsoluteURL:/Default.aspx

AbsoluteURLReferrer:http://austinafp.org/Calendar/Events-Calendar/ctl/Details/Mid/387/ItemID/120?ContainerSrc=%5BG%5DContainers/AustinAFP/NoTitle

UserAgent:Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:7a976c5d-179f-4467-95d3-8810d9f2b737

InnerException:Input string was not in a correct format.

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:System.Number.StringToNumber

StackTrace:

Message:

DotNetNuke.Services.Exceptions.ModuleLoadException: Input string was not in a correct format. ---> System.FormatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at System.Int32.Parse(String s) at DotNetNuke.Modules.Events.EventDetails.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---

Would rather not do that in a production environment, but I did it on a copy of the site on my localhost.  Here is where it occurs:

ItemId = Int32.Parse(Request.Params("ItemId"))

which is on line 111:

System.FormatException occurred
  HResult=-2146233033
  Message=Input string was not in a correct format.
  Source=mscorlib
  StackTrace:
       at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
       at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
       at System.Int32.Parse(String s)
       at DotNetNuke.Modules.Events.EventDetails.Page_Load(Object sender, EventArgs e) in C:\DDrive\Develop\DNNEvents\DNN6EventsDEV\DesktopModules\Events\EventDetails.ascx.vb:line 111

Just discovered that the problem goes away if I change my web.config from urlFormat="advanced" to urlFormat="humanfriendly".  Any idea why I can't use advanced urlFormat?