ESP8266 01 can't upload code

Hey guys,
I'm new in this and trying to upload code to my esp8266-01 and I get this error:

Arduino: 1.8.13 (Windows 10), Board: "Generic ESP8266 Module, 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), dtr (aka nodemcu), 26 MHz, 40MHz, DOUT (compatible), 1MB (FS:64KB OTA:~470KB), 2, nonos-sdk 2.2.1+100 (190703), v2 Lower Memory, Disabled, None, Only Sketch, 115200"

Executable segment sizes:

IROM : 228624 - code in flash (default or ICACHE_FLASH_ATTR)

IRAM : 26756 / 32768 - code in IRAM (ICACHE_RAM_ATTR, ISRs...)

DATA : 1248 ) - initialized variables (global, static) in RAM/HEAP

RODATA : 688 ) / 81920 - constants (global, static) in RAM/HEAP

BSS : 24880 ) - zeroed variables (global, static) in RAM/HEAP

Sketch uses 257316 bytes (26%) of program storage space. Maximum is 958448 bytes.

Global variables use 26816 bytes (32%) of dynamic memory, leaving 55104 bytes for local variables. Maximum is 81920 bytes.

esptool.py v2.8

Serial port COM4

Connecting......................................____Traceback (most recent call last):

File "C:\Users\User\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4/tools/upload.py", line 65, in

esptool.main(cmdline)

File "C:/Users/User/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py", line 2890, in main

esp.connect(args.before)

File "C:/Users/User/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.7.4/tools/esptool\esptool.py", line 483, in connect

raise FatalError('Failed to connect to %s: %s' % (self.CHIP_NAME, last_error))

esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

_

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Maybe someone knows how to fix this issue? I'm using a USB ESP8266 adapter to upload code.