Geoserver无法上传Styled Layer Descriptor(.sld)文件求助

我在向GeoServer上传Styled Layer Descriptor(.sld)文件时遇到问题：点击上传、验证或保存按钮均无任何反应。

• 此前成功上传过SLD文件，突然失效，原因不明
• 已尝试多个不同文件：包括GeoServer官方文档中的示例文件，以及自己用QGIS创建的多个文件，均无法解决问题
• 已卸载并重装Linux二进制版本的GeoServer（geoserver-2.21-SNAPSHOT-bin.zip），问题仍存在

以下是部分日志内容：

07 Nov 10:55:36 DEBUG  [geoserver.ows] - Could not find a layer group named web
07 Nov 10:55:36 DEBUG  [geoserver.ows] - Could not find a layer group named web
07 Nov 10:55:36 DEBUG  [geoserver.ows] - Could not find a layer group named web
07 Nov 10:55:36 DEBUG  [geoserver.ows] - Could not find a layer group named web
07 Nov 10:55:36 DEBUG  [geoserver.filters] - Compressing output for mimetype: text/html;charset=utf-8
07 Nov 10:55:36 DEBUG  [filter.GeoServerSecurityContextPersistenceFilter$1] - SecurityContextHolder now cleared, as request processing completed
07 Nov 10:55:37 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:37 TRACE  [platform.resource] - delta computed in 464us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:42 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:42 TRACE  [platform.resource] - delta computed in 432us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:47 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:47 TRACE  [platform.resource] - delta computed in 437us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:52 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:52 TRACE  [platform.resource] - delta computed in 430us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:57 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:55:57 TRACE  [platform.resource] - delta computed in 231us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:02 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:02 TRACE  [platform.resource] - delta computed in 423us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:07 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:07 TRACE  [platform.resource] - delta computed in 465us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:12 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:12 TRACE  [platform.resource] - delta computed in 504us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:17 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:17 TRACE  [platform.resource] - delta computed in 534us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:22 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:22 TRACE  [platform.resource] - delta computed in 456us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:27 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:27 TRACE  [platform.resource] - delta computed in 448us for /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:32 TRACE  [platform.resource] - polling contents of /usr/share/geoserver/data_dir/gwc-layers
07 Nov 10:56:32 TRACE  [platform.resource] - delta computed in 443us for /usr/share/geoserver/data_dir/gwc-layers

恳请有相关经验或解决方案的朋友提供帮助！

内容的提问来源于stack exchange，提问作者Leelo