Sim7020 not connecting with AT+CHTTPCON=0 - connection

Question

I’m trying to connect to a webpage link using a Waveshare Sim7020 module through a Raspberry Pico, using https AT commands, but the connect command returns an error.
My final objective is to send a telegram message from it using a bot link for it like explained in https://core.telegram.org/bots/api#making-requests using this method:
https://api.telegram.org/bot\<token>/METHOD_NAME
This is not working for me, so thinking that maybe this is complex I’m trying to connect to google, bur the problem continues. I have also syncronized the time on the module with a server. I’m wondering that it could be a certificate problem? These are the functions used:
from machine import Pin, ADC 
import os
import utime
import binascii
#import ujson
#print sys info
print(os.uname())
#using pin defined
ADC0= ADC(Pin(26))
sensor_temp = ADC(4)
led_pin =25  #onboard led
pwr_en = 14  #pin to control the power of sim7020x
uart_port = 0
uart_baute = 115200
APN = "cmnbiot"
i=0
reading=0
temperature=0
#indicate program started visually
led_onboard = machine.Pin(led_pin, machine.Pin.OUT)
def led_blink():
    led_onboard.value(1)
    utime.sleep(0.5)
    led_onboard.value(0)
    utime.sleep(0.5)
    led_onboard.value(1)
    utime.sleep(0.5)
    led_onboard.value(0)
def hexStr_to_str(hex_str):
    hex = hex_str.encode('utf-8')
    str_bin = binascii.unhexlify(hex)
    return str_bin.decode('utf-8')
def str_to_hexStr(string):
    str_bin = string.encode('utf-8')
    return binascii.hexlify(str_bin).decode('utf-8')
#power on the sim800c
def powerOn(pwr_en):
    pwr_key = machine.Pin(pwr_en, machine.Pin.OUT)
    pwr_key.value(1)
#power down the sim800c
def powerDown(pwr_en):
    pwr_key = machine.Pin(pwr_en, machine.Pin.OUT)
    pwr_key.value(0)
#2 sec timeout is arbitrarily chosen
def sendCMD_waitResp(cmd, timeout=2000):
    print("CMD: " + cmd)
    uart.write((cmd+'\r\n').encode())
    waitResp(timeout)
    print()
    
def waitResp(timeout=2000):
    prvMills = utime.ticks_ms()
    resp = b""
    while (utime.ticks_ms()-prvMills)<timeout:
        if uart.any():
            resp = b"".join([resp, uart.read(1)])
    print((resp).decode())
def sendCMD_waitRespLine(cmd, timeout=2000):
    print("CMD: " + cmd)
    uart.write((cmd+'\r\n').encode())
    waitRespLine(timeout)
    print()
    
def waitRespLine(timeout=2000):
    prvMills = utime.ticks_ms()
    while (utime.ticks_ms()-prvMills)<timeout:
        if uart.any():
            print((uart.readline()).decode())
            
#APN Manual configuration
def apnConfig(APN):
    sendCMD_waitResp("AT+CFUN=0")        #Disable RF
    sendCMD_waitResp("AT*MCGDEFCONT=\"IP\",\""+ APN +"\"")        #Set the APN manually
    sendCMD_waitResp("AT+CFUN=1")        #Enable RF
    utime.sleep(1)
    sendCMD_waitResp("AT+CGATT?")        #Inquiry PS service
    sendCMD_waitResp("AT+CGREG?")
    sendCMD_waitResp("AT+CGCONTRDP")      #Attached PS domain and got IP address automatically
Then this are the AT command tests and APN configuration:
#print uart info
uart = machine.UART(uart_port, uart_baute, bits=8, parity=None, stop=1)
print(uart)
#power on the board
powerOn(pwr_en)
#clear bufer in UART
waitResp()
#AT commands test
atCommandTest()
#APN Manual configuration
apnConfig(APN)
Then this is the time syncronization:
sendCMD_waitResp("AT+CSNTPSTART=\"[ntp.i2t.ehu.es](http://ntp.i2t.ehu.es/)\"")
sendCMD_waitResp("AT+CCLK?")
sendCMD_waitResp("AT+CSNTPSTOP")
sendCMD_waitResp("AT+CSNTPSTART=\"[ntp.i2t.ehu.es](http://ntp.i2t.ehu.es/)\",\"+01\"")
sendCMD_waitResp("AT+CCLK?")
sendCMD_waitResp("AT+CSNTPSTOP")
sendCMD_waitResp("AT+CURTC=1")
sendCMD_waitResp("AT+CRESET")
sendCMD_waitResp("AT+CURTC?")
sendCMD_waitResp("AT+CSNTPSTART=\"[ntp.i2t.ehu.es](http://ntp.i2t.ehu.es/)\"")
sendCMD_waitResp("AT+CCLK?")
sendCMD_waitResp("AT+CSNTPSTOP")
sendCMD_waitResp("AT+CURTC=1")
sendCMD_waitResp("AT+CURTC?")
sendCMD_waitResp("AT+CSNTPSTART=\"[ntp.i2t.ehu.es](http://ntp.i2t.ehu.es/)\",\"+01\"")
sendCMD_waitResp("AT+CCLK?")
sendCMD_waitResp("AT+CSNTPSTOP")
And this is the connection try out, where on create says OK but on connect says “ERROR”:
sendCMD_waitResp("AT+CHTTPCREATE=\"https://www.google.com/\"") 
sendCMD_waitResp("AT+CHTTPCON=0")    
sendCMD_waitRespLine("CAT+HTTPSEND=0,0,\"nextlink\"")  
waitResp()
sendCMD_waitResp("CAT+HTTPDISCON=0")
sendCMD_waitResp("CAT+HTTPDESTROY=0")
Any ideas on what could be happening?