Hello, I am having problems with Pokémon Crystal. I don't know what is going on, but when I try to get on, it says: Error. Click for details 
and I don't know what to do. I tried all three Play Games, and the first and second ones do not work. When I try to install the Vizzed plug-in, the download bar won't even move. This is really annoying, since I've gotten my Quilava to level 14 in one play through. It also says this in a mini window:

Application Blocked by Security Settings.
Name: JavaBoy
From: http://www.vizzed.co/gbc/
Your security settings have blocked an application from running with an insecure or expired jre.

Can anyone please help me with this problem?

Well, without further information, such as the browser(s) you've tried and the name of your antivirus/firewall program, it sounds to me like it's one or more of those 3 things that are blocking the installation of the plugin.  First I'd check your browser(s)...on Firefox the location is under Tools>Options>Security tab.  Make sure that nothing funky is going on there, and it wouldn't hurt to add an exception to the 'warn me when sites try to install addons' section for the plugin. Next I would do basically the same thing with your antivirus/firewall...make sure nothing is blocking the download of the plugin from Vizzed.  Sorry I can't be of more assistance, but if you're still having problems let me know and I'll see what I can do...best of luck!

Gothataway : I'm sorry for the trouble you are are experiencing, but forgive me for being a little confused.

There seems to be a few problems here.

1. It sounds like your security settings are blocking Java programs from running on your computer. This is most likely because you have not installed the most recent version of Java. When a new version of the Java plug-in is released by Oracle, web browser applications such as Firefox, Chrome, Internet Explorer, Safari, Opera and Torch, may prevent certain plug-ins from launching if the plug-in version is old. It may also be that your Java Security Settings are configured to prevent applets from loading if your Java version is old.

You could also run a different browser to see if you experience different results. I usually use Chrome or Firefox when playing games on Vizzed. They seem to work the best.

2. With regards to the plugin install. I'm not sure what the problem could be here, unless again, you have some security program blocking the download of the install file for the Plugin. I would check this and make sure you list Vizzed as a trusted site. Make sure that you are Saving the install file to your computer, then running the install once the program is fully downloaded. Also, make sure to have all browser windows closed out before starting the install.

Two of the "Play Game" options are to play with the Java emulators. I advise getting the RGR plugin installed. It is much more stable than the Java emulators and actually developed by Vizzed developers. It also has many features that the Java emulators do not.

Please feel free to PM me directly if you have further questions.