Undefined offset:

@andy-absolute – Are there any other error messages being written to your server’s error_logs that are related to NextGEN Gallery?

– Cais.

@photocrati – I have had a look through the logs, but there are no errors that are being written.

On a blank WordPress install, with just NGG installed and enabled, I can create a gallery, but when I hit “Manage Galleries” I hit the same issue.

Any other ideas?

Just been having a look at this with one of the other devs here.

The cause of the issue looks to be lines 214 and 219 in manage-galleries.php. When they are commented out, the error goes away, and I can see a list of galleries. The only problem is that the column headers are not there.

Hope that is of some help…

@andy-absolute – We’re not seeing this issue anywhere else … the only thing that might be at the root of this from what I am seeing is possibly your nginx installation settings. Generally there are little to no issues running under nginx (we do test with a nginx configuration without issue) but some installations may need to be “tweaked” to run more correctly.

– Cais.

class _NGG_Galleries_List_Table extends WP_List_Table and returns (only) 3 values, the function print_column_headers expects 4 params
list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info();
@see class-wp-list-table.php line 982: // In 4.3, we added a fourth argument for primary column.

If _NGG_Galleries_List_Table returns return array( $columns, $hidden, $sortable, null ); at line 455, the php-notice is gone. Maybe there is a more useful value instead of null, but that’s your turn.

Hope this helps.

@fgbmaster – Thanks for sharing your findings! I’ll have our developers look into this further as well.

– Cais.