stack trace after saving a game: attempted index of non-table: null

[GoogleCodeExporter]

What cartridge are you playing?
test.gwc (see attachement)

What is your phone/PDA manufacturer and model? What GPS are you using?
HTC One S with Android 4.1.1 
WhereYouGo0.6.0

What steps will reproduce the problem?
1. Start cartridge
2. exit game with saving option: yes
3. restart game with option resume previous cartridge.
4. error message, but to short to read complete
5. see 2
6. error message: you hit a bug! please ... java.lang.RuntimeException: 
attempted index of non-table: null. Stack trace: at ... .lua:335.

What is the expected output? What happens instead?
The expected output is a stable behaviour as running in simulator or on Oregon.

If you see an error screen, please type its contents here:
see 6

What version are you using?
0.6.0 of WhereYouGo

Please provide any additional information below.

Original issue reported on code.google.com by naserl...@googlemail.com on 16 Sep 2013 at 4:06

Attachments:

• test.gwc

[GoogleCodeExporter]

No error if the timer stopped manually before saving and the error depends on 
the item. No item no error.

Next problem: theres no effect on the cartridge events "on end" and "on save". 
If there would be an effect, I could stop the timer. Only "on resume" works, 
but thats to late for this problem.

Openwig:
openWIG r386

Original comment by naserl...@googlemail.com on 16 Sep 2013 at 4:16