A520f new security not work

Checking Login and Password... OK
Ballance: 5 crd.
You have 5 credit(s) left. This operation takes 5 credits.Continue? Yes
Searching Samsung modem... detected COM174
Reading phone info... OK
Model: SM-A520F
AP version: A520FXXU4BRA8
CSC version: A520FO2U3BQL3
CP version: A520FXXU4BRA8
Product code: O2U
Phone SN: R58J74CE5JX
Unique number: CBJ006CA3F02364
Searching Samsung diag port... detected COM173
Reading phone info... OK
CP version: A520FXXU4BRA8
CP build: Jan 4 2018 12:22:18
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.30.9

what to do ?