Sims 3 gamedisk error since update OS X El Capitan

I updated recently my MacBook Pro (Mid Summer 2012), from OS X Yosemite to the new OS X El Capitan. I inserted my gamedisk from 'The Sims 3 Island Paradise' as usual and wanted to start the game. As soon as the launcher showed up and I clicked the startbutton it said there was no disk found, so I cancelled the program and restarted my mac, but that didn't work.

Then I thought it might would work if I reinstall the game. The mac could read the disk and reinstall the game, but still could not open it...

This may be a bug in OS X El Capitan.

I hope there is a way to debug this.