That would be due to LPHs "+3 skillfix" not being completely perfect, this is the main drawback. The options for you I see are;
- Upgrade to EP5+ (skillfix is not needed, but other issues arise)
- See if a DEV is selling their 'skillfix' or willing to give it to you.
- Limit your skills to only Level 1-3 (EP4 style)
- Use [Only registered and activated users can see links. Click Here To Register...] (this is a good way to combat your problem if you're instant level server, but you should remove Skill Reset stones)