Patch cert samsung A530F error unable to patch certificate

Checking current patchcert.
Checking modem.
Checking root.
The phone is rooted by: 17.2:MAGISKSU (topjohnwu)
Checking boot image. Be patient! Do NOT disconnect the phone!
The knox is still valid. Because of the boot patch the warranty will void.
Writing boot image.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Reading data...
Checking modem version.
Restarting phone.
Waiting for ADB connection. Be patient! Do NOT disconnect the phone!
Reading data. Be patient! Do NOT disconnect the phone!
Unable to patch certificate.
Finished at local time: [04.26.19 12:38:59]
WorkID: 58055019

Please wait your help, thanks.