#2 Can't call method "ID"

[ulf-f]

hi,

if you choose a Graph in the left index menu Graphs
and then klick in the top menu on Graph that works.
but if you klick on Compostion in the top menu and
after that on Graph you get the following error message:
Software error:

Can't call method "ID" on an undefined value at
/var/www/DataGrapher/cgi-bin/dataGrapher-ng.cgi line 595.

you also get that error message now if you choose
any other Graph in the left index menu and now klick
direct on the Graph button in the top menu.

./regards,
ulf