NullpointerException trying to download firmware

[inoop]

Trying to flash tgy_reverse, I get the following:

Download finished: /home/niels/Downloads/esc/tmp/tgy-2015-04-19.zip path to zipFile: /home/niels/Downloads/esc/tmp/tgy-2015-04-19.zip file to extract: tgy_reverse.hex Feb 28, 2019 8:49:41 AM de.lazyzero.kkMulticopterFlashTool.KKMulticopterFlashTool err WARNING: The downloaded zip file containing the choosen hex was damaged, try again. If that doesn't work restart the application. Feb 28, 2019 8:49:41 AM de.lazyzero.kkMulticopterFlashTool.KKMulticopterFlashTool err WARNING: If the problem still occures, write a bug report. java.lang.NullPointerException at java.base/java.io.File.(File.java:276) at de.lazyzero.kkMulticopterFlashTool.utils.Zip.unzipFile(Zip.java:102) at de.lazyzero.kkMulticopterFlashTool.utils.Firmware.getFile(Firmware.java:180) at de.lazyzero.kkMulticopterFlashTool.KKMulticopterFlashTool$2.run(KKMulticopterFlashTool.java:436) Feb 28, 2019 8:49:41 AM de.lazyzero.kkMulticopterFlashTool.KKMulticopterFlashTool err WARNING: Error during writing flash. Feb 28, 2019 8:49:41 AM de.lazyzero.kkMulticopterFlashTool.KKMulticopterFlashTool$2 run WARNING: error.writeflash