Not sure if its the same thing but heres what happened to me and how i resolved it for people in future.
- Tried opening Tribot.
- launcher got stuck on "checking for splash updates".
- Sometimes an error box popped up with a bunch of lines saying something about java, splash, class not found etc. (sometimes nothing popped up and it would just crash).
- I uninstalled Tribot and deleted the remaining files.
- I uninstalled Java.
- Reinstalled both and its working again.
hope this helps someone out.