log_path = "logs/llm-server.log"
    try:
        with open(log_path, "r", encoding='utf-8') as f:
            return ''.join(deque(f, maxlen=lines))
    except FileNotFoundError:
        log.critical("Log file not found: %s", log_path)
        return "LLM Server log file not found."

log_path = "logs/llm-server.log"
    try:
        with open(log_path, "r", encoding='utf-8') as f:
            data = f.read()
            return ''.join(deque(data, maxlen=lines))
    except FileNotFoundError:
        print(f"Log file not found: {log_path}")
        return "LLM Server log file not found."
    except UnicodeDecodeError as e:
        print(f"Decoding error occurred: {e}")
        # ignore the bad bytes and continue processing
        with open(log_path, "r", encoding='utf-8', errors='ignore') as f:
            data = f.read()
            return ''.join(deque(data, maxlen=lines))