The two best things to provide Support are:
1) The call stack: after generating the Access Violation (AV), check the link within the error message, check "copy to clipboard" and OK.
Paste the call stack in the body of the e-mail.
If one can't capture the call stack like this, can go to Options | General > click "Open folder" under the Application Data Directory section.
Attach the Toad.el to the message you send to this group.
2) The Steps:
Send Support a detailed description of exactly what one was doing when the error was generated.
Document what modules one was in and what windows and icons and buttons were being activated.