Big problem Phcagallery 2.6.1 and jomla 1.5.15

[wifi]

Hello I have more category and subcategory and I have upload about 900 image.
Now from jomla backend, only when click to phofagallery menu -> image for add new photos , after some second appears this page error:

Gateway Time-out
The gateway did not receive a timely response from the upstream server or application.

why?

[Jan]

Hi, check if you are using pagination, check if you have added images to folders so not all are loaded at once (in multiple add there is a file system view). Check your php memory limits on your server. See Components - Phoca Gallery - Info (in administration) to get all recommended settings.

Jan