A505G Cant repair today..

Hello sir in last days I could repair many A505G binary 1 but yesterday and today I couldn't. Is server problem or phone problem?


Operation: Repair
Selected model: SM-A505G
Software version: 37.0

Waiting ADB device... OK
Reading phone info...
Model: SM-A505G
Android version: 9
PDA version: A505GUBU1ASD6
CSC version: A505GOWO1ASD6
Phone version: A505GDXU1ASD5
Product code: SM-A505GZKLSAM
CSC country code: PANAMA
CSC sales code: TPA
Phone SN: R28M611QJRP
IMEI: 35671110410xxxx
HW version: MP0.400
RF cal date: 20190619
Chip name: EXYNOS9610
Modem board: SHANNON337
Security patch: 2019-04-01
Boot Warranty bit: 1
SIM State: LOADED
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching server... OK
Checking server answer... OK
Executing... OK
Reading data from phone... error (0 20)
Reboot phone and try again.
Check ADB drivers, USB cable. Don't use USB Hubs
If this repeated then reflash phone and make factory reset.
Done with Samsung Tool PRO v.37.0