It seems you don't have the all data of the game (and the game is trying to download it by itself).
A few things:
- Did you download the game from our website (or is it a package from you distro) ?
- Are you sure that you've correctly unarchived the game ?
- How are you launching the game ?
Also:
- Don't launch untrusted binaries with root account ! We may be bad hackers
- The log shows that you're trying to launch the track editor, not the game (use mania_drive.sh)
- You don't need to have PHP installed, binaries are statically linked