Indexing fails with undefined null

[TurboPascal]

Hi,

every time i want to index my Articles with the default Joomla Component, the process fails at 49 % with an error message:
"undefined
undefined null"
I've deactivated each content plugin to find the error and it's the Phoca Gallery Plugin. The Plugin is up to date and i installed the german language. My Joomla version is 2.5.3.

Is there any solution to use the plugin and to index articles?

Greetings,
TurboPascal

[Jan]

Hi, what you mean with "index articles"?

[TurboPascal]

I mean this:

[Jan]

Hi, really not sure, why plugin should slow down it as in administration part, it is not active but string only.

Jan