Are you trying to pause multiple downloads at once, or just the one?
What version of Java are you using? Try this version, use the JRE offline installer & remove any other versions of Java before you install this one. Restart your comp after you've installed the Java.
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11
Next, delete LW's preferences folder when LW's properly closed. See point 3 here & also point 2 if you've used much older versions of LW in the past (there could be a folder in either location).
Fixes for LimeWire
This will kill all of your settings within options, you'll have to go back through afterwards & reset things. If you're not sure of your settings, go through LW's tools > options & write them all down, so that you can reset things later.
Now reinstall 4.14.8 & make sure to use the offline installer. When you click to download & the download box pops up, cancel it. Now you'll see the option to download the offline installer.
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