I shook a tree and the game crashed. Thread - Olvand

I made a server called "Server for Everyone" and I shook a tree. When I clicked the button "Shake" the game crashed and I got this:
INFO:root:8.2 4-1-2013, 18:35:7:796000 Start gameINFO:root:8.2 4-1-2013, 18:46:51:203000 Start serverINFO:root:8.2 4-1-2013, 18:47:31:921000 Quit serverINFO:root:8.2 5-1-2013, 21:31:28:531000 Start gameINFO:root:8.2 5-1-2013, 21:31:48:93000 Start clientINFO:root:8.2 5-1-2013, 21:36:15:625000 Stop clientINFO:root:8.2 5-1-2013, 21:36:21:609000 Start serverINFO:root:8.2 5-1-2013, 21:36:33:531000 Quit serverINFO:root:8.2 5-1-2013, 21:37:24:281000 Start gameINFO:root:8.2 5-1-2013, 21:37:49:468000 Start clientINFO:root:8.2 5-1-2013, 21:45:0:156000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:203000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:218000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:218000 Stop clientINFO:root:8.2 5-1-2013, 21:45:1:218000 Stop clientINFO:root:8.2 5-1-2013, 21:45:10:453000 Start clientINFO:root:8.2 5-1-2013, 22:34:25:609000 Start gameINFO:root:8.2 5-1-2013, 22:34:47:343000 Start clientINFO:root:8.2 5-1-2013, 22:34:49:875000 Start clientINFO:root:8.2 5-1-2013, 22:34:52:609000 Start clientINFO:root:8.2 5-1-2013, 22:35:19:15000 Start clientINFO:root:8.2 5-1-2013, 22:35:45:828000 Start clientINFO:root:8.2 5-1-2013, 22:35:56:78000 Start clientINFO:root:8.2 5-1-2013, 22:36:31:375000 Start clientINFO:root:8.2 5-1-2013, 22:39:10:921000 Start gameINFO:root:8.2 5-1-2013, 22:39:25:93000 Start clientINFO:root:8.2 5-1-2013, 22:39:35:312000 Start clientINFO:root:8.2 5-1-2013, 22:39:47:218000 Start serverINFO:root:8.2 5-1-2013, 22:40:20:937000 Quit serverINFO:root:8.2 5-1-2013, 22:41:3:328000 Start gameINFO:root:8.2 5-1-2013, 22:41:13:453000 Start clientINFO:root:8.2 5-1-2013, 22:42:37:687000 Start clientINFO:root:8.2 5-1-2013, 22:42:52:187000 Start clientINFO:root:8.2 5-1-2013, 22:43:4:171000 Start clientINFO:root:8.2 5-1-2013, 22:45:12:234000 Start clientINFO:root:8.2 5-1-2013, 22:47:7:125000 Start clientINFO:root:8.2 5-1-2013, 22:47:31:109000 Start clientINFO:root:8.2 5-1-2013, 22:47:34:750000 Start clientINFO:root:8.2 5-1-2013, 22:49:35:906000 Start clientINFO:root:8.2 5-1-2013, 22:49:38:406000 Start clientINFO:root:8.2 5-1-2013, 22:49:52:250000 Start clientINFO:root:8.2 5-1-2013, 22:51:31:421000 Start clientINFO:root:8.2 5-1-2013, 22:52:1:46000 Start clientINFO:root:8.2 5-1-2013, 22:54:42:328000 Start clientINFO:root:8.2 6-1-2013, 12:41:11:453000 Start gameINFO:root:8.2 6-1-2013, 12:41:48:171000 Start clientINFO:root:8.2 6-1-2013, 12:41:48:531000 Start clientINFO:root:8.2 6-1-2013, 12:41:48:625000 Start clientINFO:root:8.2 6-1-2013, 12:41:48:687000 Start clientINFO:root:8.2 6-1-2013, 12:41:48:734000 Start clientINFO:root:8.2 6-1-2013, 12:41:48:781000 Start clientINFO:root:8.2 6-1-2013, 12:41:49:968000 Start serverINFO:root:8.2 6-1-2013, 12:43:23:718000 Quit serverINFO:root:8.2 6-1-2013, 12:45:1:375000 Start gameINFO:root:8.2 6-1-2013, 12:45:36:484000 Start clientINFO:root:8.2 6-1-2013, 12:45:56:546000 Start clientINFO:root:8.2 6-1-2013, 12:47:11:656000 Start serverINFO:root:8.2 6-1-2013, 12:48:36:500000 Start gameINFO:root:8.2 6-1-2013, 12:48:53:828000 Start clientINFO:root:8.2 6-1-2013, 12:50:13:171000 Start clientINFO:root:8.2 6-1-2013, 12:54:15:859000 Start clientINFO:root:8.2 6-1-2013, 12:54:37:671000 Start clientINFO:root:8.2 6-1-2013, 13:0:15:531000 Start clientINFO:root:8.2 6-1-2013, 13:0:52:593000 Start clientINFO:root:8.2 6-1-2013, 13:22:37:250000 Start clientINFO:root:8.2 6-1-2013, 13:24:17:437000 Start clientINFO:root:8.2 6-1-2013, 13:27:31:484000 Start clientINFO:root:8.2 6-1-2013, 13:28:35:281000 Start clientINFO:root:8.2 6-1-2013, 13:28:36:62000 Start clientINFO:root:8.2 6-1-2013, 13:28:36:796000 Start clientINFO:root:8.2 6-1-2013, 13:28:37:515000 Start clientINFO:root:8.2 6-1-2013, 13:28:38:250000 Start clientINFO:root:8.2 6-1-2013, 13:28:39:15000 Start clientINFO:root:8.2 6-1-2013, 13:28:39:718000 Start clientINFO:root:8.2 6-1-2013, 13:28:49:187000 Start clientINFO:root:8.2 6-1-2013, 13:29:13:62000 Start clientINFO:root:8.2 6-1-2013, 13:29:56:968000 Start clientINFO:root:8.2 6-1-2013, 13:40:20:953000 Start clientINFO:root:8.2 6-1-2013, 13:40:41:562000 Start serverINFO:root:8.2 6-1-2013, 13:51:34:578000 Start gameINFO:root:8.2 6-1-2013, 13:51:49:843000 Start clientINFO:root:8.2 6-1-2013, 13:52:18:687000 Start clientINFO:root:8.2 6-1-2013, 13:52:18:906000 Start clientINFO:root:8.2 6-1-2013, 13:55:8:734000 Start clientERROR:root:8.2 6-1-2013, 13:55:26:703000 Traceback (most recent call last): File "Scripts\olvand.py", line 2253, in File "Scripts\olvand.py", line 749, in handle_events File "C:\Python31\lib\site-packages\o_functions.py", line 5972, in append_branches File "C:\Python31\lib\site-packages\o_functions.py", line 10613, in check_accoladesKeyError: 'shake_tree'

So what does this mean?

Whoops, while adding new achievements for the next update, I accidently broke the achievements for the current version of the game. I fixed it now, please try again . And thanks for your bug report!

So I should re-download the game?

Not necessary . Just restarting should be enough.

Ohh okay thank you