I have installed the PG via the WAMP server and it worked well.
He created a table, i can se that om my phpMyAdmin.
But there was no table in dreamweaver, so I had to add it manually. Look picture_5.
Then I run the PG admin and I took sample pictures from PG, everything works fine if you do not preview.
I put the code in a div on my php page. Look picture_1.
Then I run F12. Result after 1.40 minutes, picture_2. Everything is almost gone
I put the Error Reporting code on all pages.
I put the Error Reporting Code also on Power Gallery / galleries / ribbon_lightbox / index.php. The result was picture_3 and picture_4.
I hope it was a better explanations.
Thanks for the reply.
edit: Here is the code I put into my page.
$pg_id = '1';
$pg_theme = 'dark';