I have been using Logon Studio for a couple years now with no problems. Yesterday I was editing an old Logon Screen and I changed the Center Panal to a jpeg and edited the text. I saved and apply and when it went to the logon screen it says

"The instruction at "0x77f2c6ec" referenced memory at "0x00073000". The memory could not be "read".

Now I can't even boot past the logon screen because of this error even in Safe Mode.