Sim800l failing to turn on gprs

[Nnicholasnjue]

I have a code that has been running smoothly for a month, collecting some sensor data and posting them to Google sheet through API. the hardware setup includes a NODEMCU ESP32S, SIM800L, SD CARD sdmmc wired, DS3231 RTC module.
I need to do some update on the code but for one week I've been trying to recreate the hardware but cant get the code to turn on gprs.
Am stuck at;
Token info: type = OAuth2.0 access token, status = on initializing
Token info: type = OAuth2.0 access token, status = error
Token error: code: -111, message: System time or library reference time was not set. Use GSheet.setSystemTime to set time.
testcode.txt

what I have tried:

1. changing the ESP32
2. changing SIM800l
3. creating a new google account and spreadsheet

[mobizt]

Token error: code: -111, message: System time or library reference time was not set. Use GSheet.setSystemTime to set time.

[mobizt]

No internet access.

You should follow this but change TINY_GSM_MODEM_SIM7600 with your TinyGSM sim800 macro

ESP-Google-Sheet-Client/examples/GSM/GSM.ino

Lines 16 to 18 in aa4a940

	// To allow TinyGSM library integration, the following macro should be defined in src/ESP_Google_Sheet_Client_FS_Config.h or
	// your custom config file src/Custom_ESP_GOOGLE_SHEET_CLIENT_FS_Config
	// #define TINY_GSM_MODEM_SIM7600

[Nnicholasnjue]

could this be the source of my troubles?

// To allow TinyGSM library integration, the following macro should be defined in src/ESP_Google_Sheet_Client_FS_Config.h or
// your custom config file src/Custom_ESP_GOOGLE_SHEET_CLIENT_FS_Config
// #define TINY_GSM_MODEM_SIM7600

[mobizt]

You should make your SIM800 and ESP32 to work before using this library.

You should check the TinyGSM library examples for proper usage.

[mobizt]

The macro TINY_GSM_MODEM_SIM800 should also be defined in src/ESP_Google_Sheet_Client_FS_Config.h or src/Custom_ESP_GOOGLE_SHEET_CLIENT_FS_Config of this library.

[Nnicholasnjue]

Thanks alot, this macro was the source of my troubles.