Having problems starting the tweak on my DSC-WX7

[booxthy]

brought a camera in japan and was hoping to change over the language to English.
it recognizes my camera but these messages come up.

"Traceback (most recent call last):
File "C:\projects\sony-pmca-re\pmca-gui.py", line 57, in do
File "C:\projects\sony-pmca-re\pmca\commands\usb.py", line 255, in infoCommand
File "C:\projects\sony-pmca-re\pmca\usb\sony.py", line 319, in getLensInfo
File "C:\projects\sony-pmca-re\pmca\usb\sony.py", line 244, in _sendCommand
File "C:\projects\sony-pmca-re\pmca\usb\sony.py", line 97, in sendSonyExtCommand
File "C:\projects\sony-pmca-re\pmca\usb\driver\windows\wpd.py", line 177, in sendWriteCommand
File "C:\projects\sony-pmca-re\pmca\usb\driver\windows\wpd.py", line 149, in _readResponse
File "C:\projects\sony-pmca-re\pmca\usb\driver\windows\wpd.py", line 144, in _send
Exception: MTP SendCommand failed: 0x-7ff8ffe1"

And 2

Using drivers Windows-MSC, Windows-MTP
Looking for Sony devices

Querying mass storage device
Sony DSC is a camera in mass storage mode

Getting device info
Using firmware for model DSC-WX7

Unknown device: DSC-WX7

Anyone know how to fix this problem? would be so much help, thankyou.