Ok, I've just tested it with your Outliertest script that you got last Friday. I also got the "history missing" message when I started it the first time, due to the usual server delay for uploading a new history. But afterwards the script ran ok.

Do you get the error message consistently with the Outliertest.c? And only with it, not with other scripts such as Z7?

-Update: I just noticed that the script you got has a Lookback period of 1 bar. This could be a hint that there's still something wrong. We'll look into that.