观察控制台 network 发现有 API 报了 500 错误
API：https://cravatar.cn/wp-admin/admin-ajax.php
报错：
<b>Fatal error</b>: Uncaught Error: Cannot use object of type WP_Error as array in /www/wwwroot/wenpai-org/wp-content/themes/cravatar/inc/class-upyun.php:36
Stack trace:
#0 /www/wwwroot/wenpai-org/wp-content/themes/cravatar/inc/class-upyun.php(40): LitePressCravatarIncUpyun->send_request()
#1 /www/wwwroot/wenpai-org/wp-content/themes/cravatar/inc/helpers.php(424): LitePressCravatarIncUpyun->post()
#2 /www/wwwroot/wenpai-org/wp-content/themes/cravatar/functions.php(60): LitePressCravatarIncpurge_avatar_cache()
#3 /www/wwwroot/litepress.cn/wp-includes/class-wp-hook.php(303): {closure}()
#4 /www/wwwroot/litepress.cn/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#5 /www/wwwroot/litepress.cn/wp-includes/plugin.php(470): WP_Hook->do_action()
#6 /www/wwwroot/wenpai-org/wp-content/plugins/ultimate-member/includes/core/class-uploader.php(493): do_action()
#7 /www/wwwroot/wenpai-org/wp-content/plugins/ultimate-member/includes/core/class-files.php(412): umcoreUploader->upload_image()
#8 /www/wwwroot/litepress.cn/wp-includes/class-wp-hook.php(303): umcoreFiles->ajax_image_upload()
#9 /www/wwwroot/litepress.cn/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#10 /www/wwwroot/litepress.cn/wp-includes/plugin.php(470): WP_Hook->do_action()
#11 /www/wwwroot/litepress.cn/wp-admin/admin-ajax.php(187): do_action()
#12 {main}
thrown in <b>/www/wwwroot/wenpai-org/wp-content/themes/cravatar/inc/class-upyun.php</b> on line <b>36</b>
此站点遇到了致命错误。
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