ERROR: [main] failed to start the concentrator : RPI 3 and ic880a

i wanted to know the fix for this problem
*** Beacon Packet Forwarder for Lora Gateway ***
Version: 4.0.1
*** Lora concentrator HAL library version info ***
Version: 5.0.1;


INFO: Little endian host
INFO: found global configuration file global_conf.json, parsing it
INFO: global_conf.json does contain a JSON object named SX1301_conf, parsing SX1 301 parameters
INFO: lorawan_public 1, clksrc 1
INFO: no configuration for LBT
INFO: antenna_gain 0 dBi
INFO: Configuring TX LUT with 16 indexes
INFO: radio 0 enabled (type SX1257), center frequency 865200000, RSSI offset -16 6.000000, tx enabled 1, tx_notch_freq 129000
INFO: radio 1 enabled (type SX1257), center frequency 866385000, RSSI offset -16 6.000000, tx enabled 0, tx_notch_freq 0
INFO: Lora multi-SF channel 0> radio 0, IF -137500 Hz, 125 kHz bw, SF 7 to 12
INFO: Lora multi-SF channel 1> radio 0, IF 202500 Hz, 125 kHz bw, SF 7 to 12
INFO: Lora multi-SF channel 2> radio 1, IF -400000 Hz, 125 kHz bw, SF 7 to 12
INFO: Lora multi-SF channel 3 disabled
INFO: Lora multi-SF channel 4 disabled
INFO: Lora multi-SF channel 5 disabled
INFO: Lora multi-SF channel 6 disabled
INFO: Lora multi-SF channel 7 disabled
INFO: Lora standard channel 8 disabled
INFO: FSK channel 8 disabled
INFO: global_conf.json does contain a JSON object named gateway_conf, parsing ga teway parameters
INFO: server hostname or IP address is configured to “router.as.thethings.networ k”
INFO: upstream port is configured to “1700”
INFO: downstream port is configured to “1700”
INFO: packets received with a valid CRC will be forwarded
INFO: packets received with a CRC error will NOT be forwarded
INFO: packets received with no CRC will NOT be forwarded
INFO: GPS serial port path is configured to “/dev/serial0”
INFO: found local configuration file local_conf.json, parsing it
INFO: redefined parameters will overwrite global parameters
INFO: local_conf.json does not contain a JSON object named SX1301_conf
INFO: local_conf.json does contain a JSON object named gateway_conf, parsing gat eway parameters
INFO: gateway MAC address is configured to B827EBFCEDF9DAE7
INFO: packets received with a valid CRC will be forwarded
INFO: packets received with a CRC error will NOT be forwarded
INFO: packets received with no CRC will NOT be forwarded
INFO: [main] TTY port /dev/serial0 open for GPS synchronization
ERROR: [main] failed to start the concentrator

After entering cd /var/log/
nano user.log.1
output is :

Dec 13 14:16:31 lora_gateway mtp-probe: checking bus 1, device 4: “/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.1”
Dec 13 14:16:31 lora_gateway mtp-probe: bus: 1, device: 4 was not an MTP device
Dec 13 14:16:31 lora_gateway mtp-probe: checking bus 1, device 4: “/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.1”
Dec 13 14:16:31 lora_gateway mtp-probe: bus: 1, device: 4 was not an MTP device
Dec 13 14:16:34 lora_gateway lightdm[437]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.f$
Dec 13 14:16:36 lora_gateway lightdm[495]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.f$

i wanted to also know about lightdm error

Has this setup ever worked in the past, or are you trying to get it to work for the first time?

Check the reset gpio and all other wiring.

Disable the packet forwarder service and run the spi tests from the lora gateway hal util directory instead

You probably aren’t looking at the correct log, try sudo journalctl or sudo tail /var/log/syslog