V15 Source error

Please help me fixing this errors, I can't find it on google or other forums,

ompiling resources...
Linking...
FuncTextCmd.obj : error LNK2019: unresolved external symbol "public: __thiscall CWndChattingBlockingList::CWndChattingBlockingList(void)" (??0CWndChattingBlockingList@@QAE@XZ) referenced in function "int __cdecl TextCmd_IgnoreList(class CScanner &)" (?TextCmd_IgnoreList@@YAHAAVCScanner@@@Z)
FuncTextCmd.obj : error LNK2019: unresolved external symbol "public: void __thiscall CWndChattingBlockingList::UpdateInformation(void)" (?UpdateInformation@CWndChattingBlockingList@@QAEXXZ) referenced in function "int __cdecl TextCmd_BlockUser(class CScanner &)" (?TextCmd_BlockUser@@YAHAAVCScanner@@@Z)
WndField.obj : error LNK2019: unresolved external symbol "public: __thiscall CWndMailRequestingBox::CWndMailRequestingBox(void)" (??0CWndMailRequestingBox@@QAE@XZ) referenced in function "public: virtual void __thiscall CWndPost::OnInitialUpdate(void)" (?OnInitialUpdate@CWndPost@@UAEXXZ)
.\..\..\Output\Neuz\Release/Neuz.exe : fatal error LNK1120: 3 unresolved externals

Build log was saved at "file://c:\Users\Administrator\Desktop\V15 source\Output\Neuz\Release\BuildLog.htm"
Neuz - 4 error(s), 0 warning(s)


---------------------- Done ----------------------

Build: 0 succeeded, 1 failed, 0 skipped




Please help! Thanks :D