Try this:
Download the latest Java JRE (update 9) using the offline installer, see point 1 in the thread below. Remove your current Java version & then install the new one.
Fixes for LimeWire
Delete LW's preferences folder. That's points 2 & 3 in the fixes thread. The preferences folder is hidden, so you'll have to show hidden files & folders to see it:wink:
Now reinstall LW, make sure to use the offline installer (not the recommended one).