This error is caused when the bot is trayed and then right click --> hide.
The bot is visible on the taskbar when reopening it.
When FAILBOT is minimized and you cannot get it to reappear, ctrl + alt + delete and end FAILBOT.exe and then open the config for it. In it, change these settings to POSITIVE VALUES:
[Window]
Height=
Left=
Top=
Height=
An example of POSITIVE VALUES:
[Window]
Height=4005
Left=246
Top=108
Height=727
Just so you all know how to fix it if you make the same mistake (and you don't have to bug ZONE)!