only page2 will get 404error

[503badgateway]

when i access ?page=2 then I will get error 404

`Platform information
Host name: PoshGiddy-VM
Operating system: Linux 4.15.0-20-generic
Apache: Unknown
PHP: 7.3.29
MySQL: 5.5.62-log
Server load: 2.04 3.68 1.92
Graphics toolkit: gd
Gallery stats
Version: 3.0+ (branch master, build 434)
Albums: 0
Photos: 34
Kohana_404_Exception [ Page Not Found ]:
The page you requested, page/2, could not be found.
SYSPATH/libraries/Kohana_404_Exception.php[ 42 ]

37 * @throws Kohana_404_Exception
38 * @return void
39 /
40 public static function trigger($page = NULL)
41 {
42 throw new Kohana_404_Exception($page);
43 }
44
45 /*
46 * Sends 404 headers, to emulate server behavior.
47 *
SYSPATH/core/Event.php[ 208 ] » Kohana_404_Exception_Core::trigger( arguments )

SYSPATH/libraries/Router.php[ 165 ] » Event_Core::run( arguments )

SYSPATH/core/Event.php[ 208 ] » Router_Core::setup( arguments )

APPPATH/Bootstrap.php[ 61 ] » Event_Core::run( arguments )

DOCROOT/index.php[ 124 ] » require( arguments )`