Joomla! Template 002060 - Item Support

Hello at AStemplates,
I have purchased the template 002060 and installed the example-data. Now i wanted to change the picture of the artikel with the categorie SLIDER HOME. when I save the artikel I get the following errormessage:
Fehler Speichern fehlgeschlagen! Fehler: Invalid Parent ID
BUT the artikel shows the right picture and works ok. why the errormessage and how to avoid it?
With kindly regards Frank
Yes ,unfortunately some of people from Joomla community complains about this problem, it look like some bug with Joomla, the solution is here:

Login to Joomla Administrator | Select Menus --> Menu Manager | Click on the Check All box and click Rebuild

Now select Content --> Category Manager | Click on the Check All box and click Rebuild

Open Content --> Category Manager and click on the each top category to open it and then just Save it.

After you're done with the top categories, open sub categories and save them all one by one. This step you can do only with categories that you are really need.

Regards, AS Team.
Hello, I use your template 2060 for this website:
When I klick on one of the marks in the landscape I get a white box with orange fonts. I want to change the backgroundcolor, but the inspektor of firefox tells me that the css-definition is INLINE.
I cant find the point or file, where to change the color from white to maybe grey.
This is where the color is defined:

Element {
position: absolute;
left: 1px;
top: 1px;
border-radius: 2px;
background-color: rgb(255, 255, 255);
width: 326px;
height: 114px;
Any help will be greatly appreciate.
Greetings Frank
Item Name:
Item Version:
Regular License
This item may be used for a single domain only.
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