TOPIC: Error: Trying to get property of non-object

Error: Trying to get property of non-object 31 Mar 2015 13:35 #1338

I want to use JotCache on two sites. At one sites, it works like a charme. At the other site I get an error:

Notice: Trying to get property of non-object in /home/modint/domains/modintgmbh.de/public_html/plugins/system/jotcache/jotcache.php on line 62

I found this post: www.jotcomponents.net/forum/9-jotcache-u...cache-php-on-line-64
I tried the solution but it doesn't work in my case.

Any idea what is going wrong?

Joomla version : 3.4
JotCache version : 5.1.0
site template: Yootheme Nano2
system plugins :
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