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 )`