Error while pressing translate button

[Nalin-x-Linux]

German, Germany (de_DE)
Translating to : de
/home/linux/Advanced Braille Keyboard/app/src/main/res/values/strings.xml
Exception in thread Thread-2:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/usr/lib/python2.7/threading.py", line 754, in run
self.__target(self.__args, **self.__kwargs)
File "main.py", line 132, in start_translation
xmlDoc = minidom.parse(filename)
File "/usr/lib/python2.7/xml/dom/minidom.py", line 1918, in parse
return expatbuilder.parse(file)
File "/usr/lib/python2.7/xml/dom/expatbuilder.py", line 928, in parse
result = builder.parseFile(file)
File "/usr/lib/python2.7/xml/dom/expatbuilder.py", line 204, in parseFile
buffer = file.read(161024)
AttributeError: 'QString' object has no attribute 'read'