NANO upload problem

Hello forum

I am new here and a beginner with Arduino. I have a NANO:

(Arduino:1.8.12 (Windows 10), Kort"Arduino Nano, ATmega328P")

and try to upload the simple "Servo.h" sketch to the board. A red led lights up and another blinks. It seems that it tries to upload several times until the error message shows up:

avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xa7

How can I solve this problem?

Select Tools > Processor > ATmega328P (Old Bootloader) and then try uploading again.