[Plugin: Juiz Last Tweet Widget] Last Tweed isn´t working anymore

Hi,
since the last update from wordpress, the plugin doesn´t show the last two tweeds on my webside: http://www.bilderalbum.de
I checked it´s not the fault from twitter (@bilderalbum)
Do you have any idee, what is going wrong?
Gruss
Petra

http://wordpress.org/extend/plugins/juiz-last-tweet-widget/