If you don't have events installed the wall throws an error. I had to install the events module (although I don't use it) in order to make the wall work again.

Also, the friends logic check is throwing an error.

ModuleId: 648
ModuleDefId: 186
FriendlyName: Edit Post
ModuleControlSource: DesktopModules/Smart-Thinker - Wall/PostEdit.ascx
AssemblyVersion: 04.08.00
PortalID: 0
UserID: 163
ActiveTabID: 68
ActiveTabName: User Profile
RawURL: /Profiles/UserProfile/tabid/68/ctl/Edit/mid/648/RID/5/Default.aspx
AbsoluteURL: /Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: a3d46ef1-bb64-4aa6-a5a5-34cda3eb4c7b
InnerException: Method not found: 'Boolean SmartThinker.DNN.Modules.UserProfile.Business.UserProfileUtils.CheckUserProfileFriend(Int32, Int32)'.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: SmartThinker.DNN.Modules.Wall.Business.WallUtils.IsUserProfileFriend
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Method not found: 'Boolean SmartThinker.DNN.Modules.UserProfile.Business.UserProfileUtils.CheckUserProfileFriend(Int32, Int32)'. ---> System.MissingMethodException: Method not found: 'Boolean SmartThinker.DNN.Modules.UserProfile.Business.UserProfileUtils.CheckUserProfileFriend(Int32, Int32)'. at SmartThinker.DNN.Modules.Wall.Business.WallUtils.IsUserProfileFriend(Int32 relatedUserID, Int32 loggedOnUserID) at SmartThinker.DNN.Modules.Wall.Business.WallUtils.CheckWallPostRights(WallType wallType, Int32 relatedID, Int32 userID) at SmartThinker.DNN.Modules.Wall.Business.WallUtils.CanPostOnWall(Int32 relatedID, Int32 userID) at SmartThinker.DNN.Modules.Wall.PostEdit.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---
Source:

Ivan wrote If you don't have events installed the wall throws an error. I had to install the events module (although I don't use it) in order to make the wall work again.

Ivan - at what point did an error occur due to the Events module and can you paste the error from your error log here if possible please. I can't reproduce this.

Rodney Joyce wrote  Ivan wrote If you don't have events installed the wall throws an error. I had to install the events module (although I don't use it) in order to make the wall work again.   Ivan - at what point did an error occur due to the Events module and can you paste the error from your error log here if possible please. I can't reproduce this.

Well, I had the Wall installed for profiles and groups. Upgraded it with the new version and it starte giving the error. After I installed events the problem got fixed.

ModuleId: 644
ModuleDefId: 186
FriendlyName: Conversations
ModuleControlSource: DesktopModules/Smart-Thinker - Wall/WallTopics.ascx
AssemblyVersion: 04.08.00
PortalID: 0
UserID: 29
UserName: ivtch
ActiveTabID: 94
ActiveTabName: Group Details
RawURL: /Groups/GroupDetails/tabid/94/ID/1/Default.aspx
AbsoluteURL: /Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 53020098-8d02-4d81-a867-d47e916ec24d
InnerException: Could not load file or assembly 'SmartThinker.DNN.Modules.Events, Version=4.3.7.19374, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: SmartThinker.DNN.Modules.Wall.Business.WallUtils.CheckWallVisibility
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Could not load file or assembly 'SmartThinker.DNN.Modules.Events, Version=4.3.7.19374, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. ---> System.IO.FileNotFoundException: Could not load file or assembly 'SmartThinker.DNN.Modules.Events, Version=4.3.7.19374, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. File name: 'SmartThinker.DNN.Modules.Events, Version=4.3.7.19374, Culture=neutral, PublicKeyToken=null' at SmartThinker.DNN.Modules.Wall.Business.WallUtils.CheckWallVisibility(WallType wallType, Int32 relatedID, Int32 userID) at SmartThinker.DNN.Modules.Wall.Business.WallUtils.CanSeeWall(Int32 relatedID, Int32 userID) at SmartThinker.DNN.Modules.Wall.WallTopics.Page_Load(Object sender, EventArgs e) WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. --- End of inner exception stack trace ---
Source:

The UserProfile module ver 4.3.11 has now been released. Please confirm that this is no longer an issue.