vfd 1100 imei repair fail api error

SigmaKey 2.28.00 ADB: Repair IMEI
* daemon not running. starting it now *
* daemon started successfully *
^ Android Composite ADB Interface
Version: Linux version 3.18.19 (android@tabletbuild1) (gcc version 4.8 (GCC) ) #1 SMP PREEMPT Wed May 11 15:50:12 CST 2016
Baseband Processor: MT8321M
Reading software IMEI...Smart-card API error 0x8010002F

i have issue from sigma team in this update ......