The file rld.dll is part of the game's crack/DRM bypass. Because of how these files work, modern Windows Defender (and other AVs) often flag them as malicious ("Trojan" or "PUP") and silently quarantine or delete them.
error in FIFA 13 usually prevents the game from launching and is often caused by antivirus software quarantining the file or corrupted installation data. Solutions include restoring the file from quarantine, repairing Visual C++ Redistributables, or replacing the file in the game directory. For a direct download of the missing file, visit DLL-files.com Google Groups Fifa 13 Fatal Error Rld.dll - Google Groups 9 Dec 2023 — fifa 13 rld.dll