Problems with missing files, not working charts, PaxSim crashes etc

There are several methods to resolve this: 

1. Whitelist lukeairtool.net

Simply adding https://lukeairtool.net and LukeAirTool folder to your antivirus whitelist 

2. Re-download

Using the launcher, click on settings and uninstall LukeAirTool. Then click on HOME and go over to the download button. Just let that redownload. Make sure that you have done step 1

3. PaxSim and Soundboard error when starting them

This could be down to missing files. Follow Step 1 then Step 2 to fix this. Then please check if you have Windows Media Player installed. Open CMD on your PC (press start and type CMD).
Paste this command and press enter: Dism /Online /Enable-Feature /FeatureName:WindowsMediaPlayer /All