a520f read code server error

Checking Login and Password... OK
Ballance: 10 crd.
You have 10 credit(s) left. This operation takes 5 credits.Continue? Yes
Searching Samsung modem... detected COM57
Reading phone info...
Model: SM-A520F
AP version: A520FXXU4BRC4
CSC version: A520FOXX4BRC2
CP version: A520FXXU4BRC1
Product code: XEU
Phone SN: R58K42J62DW
IMEI: 356650099260723
Unique number: CBJ00531AFE7425
Searching Samsung diag port... detected COM56
Reading phone info... OK
CP version: A520FXXU4BRC1
CP build: Mar 5 2018 16:14:35
Reading data from phone... error (1)
Searching server... OK
Checking available files... not found compatible file
Try downgrade modem if possible
Done with Samsung Tool PRO v.31.5