I've never seen this error before when loading a lines file. I had no problem loading 26 other lines files into our simulator last night, all from the same source (Discord channel) - but one (BuffaloSabres.shl) wouldn't load. I even had this GM re-do his lines for today in case somehow he used an older pre-preseason league file, but I'm still getting this error (he's using the latest league file).
I saw long-ago posts on this in this forum, and I created exception paths through my Antivirus for my Discord channel, the STHS Simulator, and the destination folder. I clicked Properties on the lines file itself to unblock it - same error. I tried opening the file in the STHS Client too, but it's still giving me this error. Not sure what more I can do (I'm going to restart my laptop and see if that magically helps lol - EDIT: it did not).
Using sim version 3.3.8.8 and my lines file is located here (again, it seems to work for everyone except this one GM):
https://beardhockey.live/BEARD-PRE.stc
Any insight as to what this could be?