Ubisys J1 OTAU starts over and over again

I wanted to upgrade my ubisys J1 to the newest firmware. So I downloaded the file to ~/otau/, started the GUI, started the “STD OTAU Plugin” and pressed “Query” on the J1. It started downloading really fast but stopped at ~50 %. It started again, stopped after a few percent and started over again and again.

I opened the debug view with “ERROR” and “OTA”:

08:03:53:386 send img notify to 0x001fee000000514a
08:03:55:182 otau query next img req: 0x001fee000000514a mfCode: 0x10F2, img type: 0x7B04, sw version: 0x01160206
08:03:55:183 OTAU: /home/pi/otau/10F2-7B04-0191020D.zigbee: 261134 bytes
08:03:55:184 OTAU:   ota header (60 bytes)
08:03:55:184 OTAU:   tag 0x0000, length 0x0003FBCC (261074 bytes)
08:03:55:260 OTAU:   packed 1912651464 bytes
08:03:55:345 Img block req fwVersion:0x0191020D, offset: 0x00000000, maxsize: 56
08:03:55:347 otau send img block rsp offset: 0x00000000 dataSize 56 0x001FEE000000514A
08:03:55:452 Img block req fwVersion:0x0191020D, offset: 0x00000038, maxsize: 4
08:03:55:453 otau send img block rsp offset: 0x00000038 dataSize 4 0x001FEE000000514A
08:03:55:606 Img block req fwVersion:0x0191020D, offset: 0x0000003C, maxsize: 6
08:03:55:607 otau send img block rsp offset: 0x0000003C dataSize 6 0x001FEE000000514A
08:03:55:722 Img block req fwVersion:0x0191020D, offset: 0x00000042, maxsize: 18
08:03:55:723 otau send img block rsp offset: 0x00000042 dataSize 18 0x001FEE000000514A
08:03:55:859 otau img page req fwVersion:0x0191020D, offset: 0x000000AA, pageSize: 66, rspSpacing: 20 ms
08:03:55:895 otau send img block rsp offset: 0x000000AA dataSize 64 0x001FEE000000514A
08:03:55:938 ...
08:03:55:949 ...
08:03:55:962 ...
08:03:55:968 otau aps conf failed status 0xE5
08:03:55:969 unhandled APS-DATA.confirm id: 225 status 0xE5
08:03:55:975 otau send img block rsp offset: 0x000000EA dataSize 2 0x001FEE000000514A
08:04:22:868 Img block req fwVersion:0x0191020D, offset: 0x000000AA, maxsize: 64
08:04:22:870 otau send img block rsp offset: 0x000000AA dataSize 64 0x001FEE000000514A
08:04:32:959 otau aps conf failed status 0xA7
08:04:40:969 Img block req fwVersion:0x0191020D, offset: 0x000000AA, maxsize: 64
08:04:40:971 otau send img block rsp offset: 0x000000AA dataSize 64 0x001FEE000000514A
08:04:51:343 otau aps conf failed status 0xA7

Is there anything I can do to perform the update?