Hey,
A couple things. First, with this script, before you hit the hotkey, you need to click on the chart where you want your stop loss to be. That might be why it's not getting a valid price.
Second you'll want to change your Route to "Limit" while in sim.
StopPrice=Price-0;DefShare=BP*0.925;Price=Ask-Price+0.00;SShare=20/Price;Share=DefShare-SShare;DefShare=DefShare+SShare;SShare=Share;Sshare=DefShare-SShare;Share=0.5*SShare;TogSShare;ROUTE=LIMIT;Price= Ask+0.05;TIF=DAY+;BUY=Send;DefShare=200;TriggerOrder=RT:STOP STOPTYPE:MARKET PX:StopPrice-0.05 ACT:SELL STOPPRICE:StopPrice QTY:Pos TIF:DAY+