take heart, we'll fight the hours

it seems like there have been issues with java-related games like memory and puzzle chain since java updated to their latest version some weeks ago. here's how to fix it! credit goes to taliana! (lifted from a thread at heartchu forums)

THIS FIX IS FOR WINDOWS PC. CLICK HERE IF YOU USE MAC.

Step 1
Update your Java! Keeping Java up to date helps protect you from malicious scripts that might be running on various websites. It's not worth putting the security of your computer in danger just because a Java update might make it hard to play the puzzle and memory games.

Step 2
Oh no! Is your Java broken now?

If you're seeing something similiar to this, then keep reading because this is the error that we're going to be fixing with this.

You want to find the "Configure Java" console that was likely installed when you installed Java. For Windows users, you can find this by clicking on Start and then either typing Java in the search bar, or going to your Programs, and finding Java in the list, then Configure Java.


Step 3
After clicking on Configure Java, a console window will pop up. Click on the Security tab at the top.


Step 4
You might be tempted to just turn your security settings down - DON'T DO THAT!!! That puts your computer at risk!

Instead, we're going to add Pairings as one of the site exceptions.

Under Exception Site List, click on the Edit Site List button.


Step 5
Click on Add and type in http://pairings.moon-jewel.net/
(image below would be of http://www.heartchu-tcg.com as an example)


Step 6
Hit your enter button. You'll get a security prompt now - just click Continue!


And that's it! You're all done! What you've just done is kept all your Java settings nice and secure, but added Pairings as a "trusted" site, which lets the games still work as normal.

You can repeat step 4 to 6 for other TCGs you're encountering this problem on.

feel free to ask any questions you may have and if you use windows, please kindly assist if you are able to as I'm afraid I'm not much help in this area :/