E-Maculation

Hi,
I was playing with BasiliskII when it (or system 7.5.3 ?) crashed.
I needed to force quit BasiliskII.
Unfortunately, each time I reboot BasiliskII the virtual machine state is still "crashed".
How could I reset it ?
I don't know how to turn off extension from BasiliskII, neither hold the shift key ...
Thanks

Here is the virtual machine sceen as soon as i start BasiliskII :

To disable to extension, you can run another clean Macintosh guest OS and mount the crashed disk image. Remove the extension files in clean Macintosh guest OS.