I posted two questions under the thread 954874, and it turned out that everyone started discussing the first part of the question dealing with the eventlog feature. Now that I was able to recover my event log, I am posting the error message that I receive everytime I go to the User Accounts tab. Please let me know how I can fix this problem.

ModuleId: 411
ModuleDefId: 15
FriendlyName: User Accounts
ModuleControlSource: Admin/Users/Users.ascx
AssemblyVersion: 03.01.00
Method: _ASP.Users_ascx.__DataBind__control19
FileName:
FileLineNumber: 0
FileColumnNumber: 0
PortalID: 3
PortalName: ****
UserID: *
UserName: ****
ActiveTabID: 96
ActiveTabName: User Accounts
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
ExceptionGUID: 47c9f29d-9b41-400c-86cd-6e7fa82703c8
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
InnerException: Object reference not set to an instance of an object.
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at _ASP.Users_ascx.__DataBind__control19(Object sender, EventArgs e) at System.Web.UI.Control.OnDataBinding(EventArgs e) at System.Web.UI.Control.DataBind() at System.Web.UI.Control.DataBind() at System.Web.UI.Control.DataBind() at System.Web.UI.WebControls.DataGrid.CreateItem(Int32 itemIndex, Int32 dataSourceIndex, ListItemType itemType, Boolean dataBind, Object dataItem, DataGridColumn[] columns, TableRowCollection rows, PagedDataSource pagedDataSource) at System.Web.UI.WebControls.DataGrid.CreateControlHierarchy(Boolean useDataSource) at System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) at System.Web.UI.WebControls.BaseDataList.DataBind() at DotNetNuke.Modules.Admin.Users.UserAccounts.BindData(String SearchText, String SearchField) at DotNetNuke.Modules.Admin.Users.UserAccounts.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---
StackTrace:
Source:
Server Name: WINHOST43

Thanks for your help.