Fatal error: Maximum execution time of XX seconds exceeded in...
This is because it takes more than XX seconds to get all the data from your dreambox.
The sollution is quite simple: Locate your php.ini file and open it with a text editor. Look for the line max_execution_time. It should say something like 30. Increase that number to 60.
Restart your apache to reload the php settings. Now you have 60 seconds the time to get the information from your dreambox. If this is still to less, just increase the number with 30 seconds each.