itch.io

I did not know that tfgamesite had been blocked. That does pose a problem as I consider that site the main platform for the game (forum is there and such), here's a direct download link to Chapter 2c, you might need to start a new game as this version is slightly different.
https://pixeldrain.com/u/SqgzGAsw

While I don't know where exactly you are in the Forgotten Library, maybe this will help https://imgur.com/a/Pq6gPH2 :)

Thank you for reporting! 
There is indeed a crash, I'll get right to fixing it.
In the meantime I suggest downloading the version over on tfgamesite, it is a newer version.

After going up the small stony stairs, there's a ledge on the left, you can jump to the pillars sticking out of the water to proceed :)