The virtual tour is online and working 6 months now. Today i realized that google maps plugin is not working. Few days ago it was working perfectly. I did not change anything.
In flash debug mode a get the following
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Kcache/decoding_tiledimage_done()
at filedecoder/filedecoder_complete()
test it here