As an update, even though the trial will last until 2284, you will still get the "SVOX has failed Licence Check," problem. The solution is this:
1) Force Close, Svox Classic TTS.
2) Then, Force Close SVOX UK English Victoria Voice v3.1.4 or any of the voices you installed.
3) Then, go back to Svox Classic TTS and "Clear data"
4) Start VOX UK English Victoria Voice v3.1.4 or any of the voices you installed, and let it verify the installation.
It should now work until the next time licence check fails. Everytime the licence check fails, just repeat steps 1-4.
Salud
1) Force Close, Svox Classic TTS.
2) Then, Force Close SVOX UK English Victoria Voice v3.1.4 or any of the voices you installed.
3) Then, go back to Svox Classic TTS and "Clear data"
4) Start VOX UK English Victoria Voice v3.1.4 or any of the voices you installed, and let it verify the installation.
It should now work until the next time licence check fails. Everytime the licence check fails, just repeat steps 1-4.
Salud