This was the fix. Thanks!

Running on MAC OSX. Gets to 89 percent loaded when opening the game and then crashes. It creates two reports please see below. When loading it gets to the loading sprites and then halts at 89%.

0.000 2016-10-16 10:59:11; Factorio 0.13.20 (build 24011, mac, alpha)
0.000 Operating system: Mac OS X ...