Not sure, haven't heard about this error. I'm sure it shall be fixed
though.
However, first you need to update to the latest version because the
error lines do not correspond to the newer version i am looking at.
Look at
http://wiki.github.com/Eyaro/ejasko.tim.lisp/getting
First, however, you need to uninstall it. If you installed via the
update site, you can simply go help->install new software->whats
already installed. Then click plugin and uninstall. If you didn't in
tall from update site, simply go into the plugins directory of eclipse
and delete the jasko.tim folder. Also go into the features eclipse
folder and delete the jasko folder.
Now, restart the workspace and you should see the lisp perspective has
disappeared. Now you will be ready to follow the instructions on the
above link.
First, you should probably try it with your 32 bit too make sure it
still works with ubuntu, which it hopefully should. Then try it with
64 and report back the error.
Make sure to also read the using part of the wiki above if
environmental variables need to be set up.