org.apache.cordova.Zip.unzipSync in IONIC and Cordova folders:

node_modules\cordova-plugin-zip\src\android\Zip.java && /plugins

replace if(file.exists() || file.createNewFile()){ 

with

if(file.exists() || file.createNewFile() || file.getCanonicalPath().startsWith(outputDirectory)){
de_DEDeutsch