Update broke the game for me as well. I'm using Fedora 27. Here's how I fixed it:
1) Remove your game files and download and install it again with albiononline.com/en/download (to save launcher update time, you can keep old game_x64 folder and put it to new game folder)
2) Don't use the script provided in this thread. Instead just use the following command in terminal:
Solo for now.