Help: error 1074395247 invalid template descriptor.

Hello,
I am trying to implement a programming that use webcam to catch video by function Vision Acquisition, and track a small object (shown on picture below) by Vision Assisstant and finally save it to AVI.
The first time I run the programming, it works. However, after I restart my computer, the overlay rectangle does not appear to the imgae in front panel anymore. If I connect error out from Vision Assistant to IMAQ AVI2 Write Frame, the AVI video even can't be saved. 
I have attached my code, would some one help me to figure it out?
Best Regards,
Dylan
Attachments:
tracking.vi ‏161 KB

From which application server you are trying to download the application???
Also have you set the MIME-TYPE for the JAD and JAR in the web.xml

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