[PROBLEM] plugin failing for some videos

[BorisG]

Software
XBian version: 1.0Beta2
XBMC version: 12.2 Git: 20130916-091cb29
Overclock settings:XBian (ARM=840, core=275, SDRAM=400, Overvolt=0)

Hardware
Power supply rating:
RPi model (model A/B 256mb/512mb): model B, 256mb
SD card size and make/type:8GB Kingston, class 10
Network (wireless or LAN): LAN
Connected devices (TV, USB, network storage, etc.): TV only

Logile
Link to logfile(s): http://xbmclogs.com/show.php?id=99738

Problem description: I’m no longer able many of the videos on the ARTE channel. I keep getting the message “Script failed! : plugin.video.arte_tv”. These used to work well until recently. Everything changed when I decided to have a look at the latest XBian Alpha version. After I went back to the current Beta, I noticed that I had this problem with various videos. In addition, the menus don’t show as thumbnails as before (much the same way as in the alpha version). Any help will be greatly appreciated.

How to reproduce: Once in ARTE, go to Genres, then Découverte. Most items under that submenu won’t play.