系统发生错误

[8] ErrorException in KKVideo.php line 48

Trying to access array offset on value of type null

        return $collect[0] ?? null;
    }

    public function getCoverImageAttr()
    {
        if ($this->getAttr('type') == 1) {
            return $this->getAttr('video')->preview ?? null;
        } elseif ($this->getAttr('type') == 2) {
            //兼容安卓上线版本
            $image = $this->getAttr('images')[0];
            return ['link' => $image];
        }
    }
    //兼容安卓上线版本
    public function getVideoAttr($video)
    {
        if ($this->getAttr('type') == 2) {
            return ['link' => ''];
        }

Call Stack

in KKVideo.php line 48
at Error::appError() in KKVideo.php line 48
at KKVideo->getCoverImageAttr() in Attribute.php line 500
at Model->getAttr() in Conversion.php line 212
at Model->toArray() in Collection.php line 51
at Collection->think\{closure}()
at array_map() in Collection.php line 52
at Collection->toArray() in KKVideoV2.php line 135
at KKVideoV2->query()
at ReflectionMethod->invokeArgs() in Container.php line 395
at Container->invokeReflectMethod() in Module.php line 131
at Module->think\route\dispatch\{closure}()
at call_user_func_array() in Middleware.php line 185
at Middleware->think\{closure}()
at call_user_func() in Middleware.php line 130
at Middleware->dispatch() in Module.php line 136
at Module->exec() in Dispatch.php line 168
at Dispatch->run() in App.php line 432
at App->think\{closure}()
at call_user_func_array() in Middleware.php line 185
at Middleware->think\{closure}() in AfterGuardSignLatest.php line 16
at AfterGuardSignLatest->handle()
at call_user_func_array() in Middleware.php line 185
at Middleware->think\{closure}() in GuardUser.php line 39
at GuardUser->handle()
at call_user_func_array() in Middleware.php line 185
at Middleware->think\{closure}()
at call_user_func() in Middleware.php line 130
at Middleware->dispatch() in App.php line 435
at App->run() in index.php line 20

Environment Variables

GET Data
page	1
size	20
sort_id	desc

Server/Request Data
USER	www-data
HOME	/var/www
HTTP_ACCEPT_ENCODING	br, gzip, deflate
HTTP_USER_AGENT	undici
HTTP_SEC_FETCH_MODE	cors
HTTP_ACCEPT_LANGUAGE	*
HTTP_ACCEPT	/
HTTP_CONNECTION	keep-alive
HTTP_HOST	www.kanghao.shop
REDIRECT_STATUS	200
SERVER_NAME	www.kanghao.shop
SERVER_PORT	443
SERVER_ADDR	122.114.87.58
REMOTE_PORT	54466
REMOTE_ADDR	122.114.87.58
SERVER_SOFTWARE	nginx/1.18.0
GATEWAY_INTERFACE	CGI/1.1
HTTPS	on
REQUEST_SCHEME	https
SERVER_PROTOCOL	HTTP/1.1
DOCUMENT_ROOT	/home/wwwroot/qingsen_api/public
DOCUMENT_URI	/index.php
REQUEST_URI	/open/kk_video/queryV2?page=1&size=20&sort_id=desc
SCRIPT_NAME	/index.php
CONTENT_LENGTH
CONTENT_TYPE
REQUEST_METHOD	GET
QUERY_STRING	s=/open/kk_video/queryV2&page=1&size=20&sort_id=desc
SCRIPT_FILENAME	/home/wwwroot/qingsen_api/public/index.php
PATH_INFO
FCGI_ROLE	RESPONDER
PHP_SELF	/index.php
REQUEST_TIME_FLOAT	1743908386.0553
REQUEST_TIME	1743908386

ThinkPHP Constants
FILTER_VALIDATE_BOOL	258
HTMLPURIFIER_PREFIX	/home/wwwroot/qingsen_api/vendor/ezyang/htmlpurifier/library

ThinkPHP V5.1.41 LTS { 十年磨一剑-为API开发设计的高性能框架 }