If applet is not loaded you must check does your browser have installed Java Plug-In JDK 5.0 or later. Or in browser security settings you must give permissions to this applet. If have no this plug-in in your browser download and install it. Or edit security settings of your browser to allow execution of applet.
If can not execute applet probably you are click “Cancel” on Warning – Security dialog and don’t want to run this application. Or your browser security settings don’t allow Signed Applet to be executed.
To solve this problem you must restart your browser or edit security settings of your browser to allow execution of applet.
When can not read certificate message is shown, the file that you are selected as certificate keystore is not in PKCS#12 format (.P12 or .PFX) or is corrupted or the password is invalid.
Then check is selected file the corrected certificate keystore or is his certificate valid or you are entering not valid password for this certificate.
If applet causes java script error probably the form is incorrect and must send message to website support team to solve this problem.
If applet causes the web browser to crash then you must preinstall the browser or the java plug-in.
If applet runs too slowly you probably try to upload large file. Or performance of your PC is not too high.