hello, I have a problem connecting to the EMQX cloud. Below is the code, can anyone tell me how to fix it?
[2024-07-20 12:28:59:679_S:] AT+QFLST=“cacert2.pem”
[2024-07-20 12:28:59:737_R:] AT+QFLST=“cacert2.pem”
[2024-07-20 12:28:59:737_R:] +QFLST: “cacert2.pem”,1358
[2024-07-20 12:28:59:737_R:] OK
[2024-07-20 12:29:37:088_S:] AT+CGDCONT?
[2024-07-20 12:29:37:153_R:] AT+CGDCONT?
[2024-07-20 12:29:37:153_R:] +CGDCONT: 1,“IP”,“Plus”,“0.0.0.0”,0,0,0,0
[2024-07-20 12:29:37:153_R:] OK
[2024-07-20 12:29:47:275_S:] AT+CGACT?
[2024-07-20 12:29:47:329_R:] AT+CGACT?
[2024-07-20 12:29:47:329_R:] +CGACT: 1,1
[2024-07-20 12:29:47:329_R:] OK
[2024-07-20 12:29:56:479_S:] AT+QIACT=1
[2024-07-20 12:29:56:540_R:] AT+QIACT=1
[2024-07-20 12:29:56:540_R:] ERROR
[2024-07-20 12:30:00:631_S:] AT+QIACT?
[2024-07-20 12:30:00:687_R:] AT+QIACT?
[2024-07-20 12:30:00:687_R:] +QIACT: 1,1,1,“100.103.239.228”
[2024-07-20 12:30:00:687_R:] OK
[2024-07-20 12:30:22:611_S:] AT+QMTCFG=“ssl”,0,1,2
[2024-07-20 12:30:22:680_R:] AT+QMTCFG=“ssl”,0,1,2
[2024-07-20 12:30:22:680_R:] OK
[2024-07-20 12:30:23:641_S:] AT+QSSLCFG=“cacert”,2,“cacert2.pem”
[2024-07-20 12:30:23:711_R:] AT+QSSLCFG=“cacert”,2,“cacert2.pem”
[2024-07-20 12:30:23:711_R:] OK
[2024-07-20 12:30:24:671_S:] AT+QSSLCFG="sni"2,1
[2024-07-20 12:30:24:741_R:] AT+QSSLCFG="sni"2,1
[2024-07-20 12:30:24:741_R:] +QSSLCFG: “sni”,1,0
[2024-07-20 12:30:24:741_R:] OK
[2024-07-20 12:30:25:703_S:] AT+QSSLCFG=“sslversion”,2,4
[2024-07-20 12:30:25:773_R:] AT+QSSLCFG=“sslversion”,2,4
[2024-07-20 12:30:25:773_R:] OK
[2024-07-20 12:30:26:734_S:] AT+QSSLCFG=“ignorelocaltime”,2,1
[2024-07-20 12:30:26:789_R:] AT+QSSLCFG=“ignorelocaltime”,2,1
[2024-07-20 12:30:26:789_R:] OK
[2024-07-20 12:30:27:758_S:] AT+QSSLCFG=“seclevel”,2,1
[2024-07-20 12:30:27:827_R:] AT+QSSLCFG=“seclevel”,2,1
[2024-07-20 12:30:27:827_R:] OK
[2024-07-20 12:30:28:793_S:] AT+QSSLCFG=“ciphersuite”,2,0XFFFF
[2024-07-20 12:30:28:856_R:] AT+QSSLCFG=“ciphersuite”,2,0XFFFF
[2024-07-20 12:30:28:856_R:] OK
[2024-07-20 12:30:29:824_S:] AT+QMTCFG=“version”,0,4
[2024-07-20 12:30:29:884_R:] AT+QMTCFG=“version”,0,4
[2024-07-20 12:30:29:884_R:] OK
[2024-07-20 12:30:37:347_S:] AT+QMTOPEN=0,“f4cac806.ala.eu-central-1.emqxsl.com”,8883
[2024-07-20 12:30:37:410_R:] AT+QMTOPEN=0,“f4cac806.ala.eu-central-1.emqxsl##com”,8883
[2024-07-20 12:30:37:410_R:] OK
[2024-07-20 12:30:40:961_R:] +QMTOPEN: 0,0
[2024-07-20 12:30:47:591_R:] DSR:0 CTS:0 (RI:1) DCD:0
[2024-07-20 12:30:47:652_R:] +QMTSTAT: 0,1
[2024-07-20 12:30:47:712_R:] DSR:0 CTS:0 (RI:0) DCD:0