php error

flati / 2017-05-04 18:32:22   

Hi guys,
I just updated my website welcometoflat-i.net and am now getting the following error message:

"-object in /public/sites/welcometoflat-i.net/ndxzstudio/lib/… on line 75

Notice: Trying to get property of non-object in /public/sites/welcometoflat-i.net/ndxzstudio/lib/… on line 75"

I checked the php and it's related to the check for compatibility with mobile devices, but that's about as far as my knowledge goes. Anyone any idea what this is? And more importantly, how to get rid of it?

Thanks!

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