子域名WordPress访问子路由出现Error 404问题求助

我搭建了子域名WordPress站点 ecommerce-example.wagnercaetano.com，初始访问主页时页面加载正常，后台也能正常使用，但访问/contacs这类子路由时，会出现Error 404错误。

主域名.htaccess内容 #

# BEGIN LSCACHE
## LITESPEED WP CACHE PLUGIN - Do not edit the contents of this block! ##
<IfModule LiteSpeed>
RewriteEngine on
CacheLookup on
RewriteRule .* - [E=Cache-Control:no-autoflush]
RewriteRule \.litespeed_conf\.dat - [F,L]

### marker MOBILE start ###
RewriteCond %{HTTP_USER_AGENT} Mobile|Android|Silk/|Kindle|BlackBerry|Opera\ Mini|Opera\ Mobi [NC]
RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+ismobile]
### marker MOBILE end ###

### marker CACHE RESOURCE start ###
RewriteRule wp-content/.*/[^/]*(responsive|css|js|dynamic|loader|fonts)\.php - [E=cache-control:max-age=3600]
### marker CACHE RESOURCE end ###

### marker LOGIN COOKIE start ###
RewriteRule .? - [E="Cache-Vary:,wp-postpass_dea2198edd9acdc4d43f4b9bf28a886e"]
### marker LOGIN COOKIE end ###

### marker FAVICON start ###
RewriteRule favicon\.ico$ - [E=cache-control:max-age=86400]
### marker FAVICON end ###

### marker WEBP start ###
RewriteCond %{HTTP_ACCEPT} "image/webp"
RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]
RewriteCond %{HTTP_USER_AGENT} iPhone.*Version/(\d{2}).*Safari
RewriteCond %1 >13
RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]
### marker WEBP end ###

### marker DROPQS start ###
CacheKeyModify -qs:fbclid
CacheKeyModify -qs:gclid
CacheKeyModify -qs:utm*
CacheKeyModify -qs:_ga
### marker DROPQS end ###

</IfModule>
## LITESPEED WP CACHE PLUGIN - Do not edit the contents of this block! ##
# END LSCACHE
# BEGIN NON_LSCACHE
## LITESPEED WP CACHE PLUGIN - Do not edit the contents of this block! ##
### marker BROWSER CACHE start ###
<IfModule mod_expires.c>
ExpiresActive on
ExpiresByType application/pdf A31557600
ExpiresByType image/x-icon A31557600
ExpiresByType image/vnd.microsoft.icon A31557600
ExpiresByType image/svg+xml A31557600

ExpiresByType image/jpg A31557600
ExpiresByType image/jpeg A31557600
ExpiresByType image/png A31557600
ExpiresByType image/gif A31557600
ExpiresByType image/webp A31557600

ExpiresByType video/ogg A31557600
ExpiresByType audio/ogg A31557600
ExpiresByType video/mp4 A31557600
ExpiresByType video/webm A31557600

ExpiresByType text/css A31557600
ExpiresByType text/javascript A31557600
ExpiresByType application/javascript A31557600
ExpiresByType application/x-javascript A31557600

ExpiresByType application/x-font-ttf A31557600
ExpiresByType application/x-font-woff A31557600
ExpiresByType application/font-woff A31557600
ExpiresByType application/font-woff2 A31557600
ExpiresByType application/vnd.ms-fontobject A31557600
ExpiresByType font/ttf A31557600
ExpiresByType font/otf A31557600
ExpiresByType font/woff A31557600
ExpiresByType font/woff2 A31557600

</IfModule>
### marker BROWSER CACHE end ###

## LITESPEED WP CACHE PLUGIN - Do not edit the contents of this block! ##
# END NON_LSCACHE

# BEGIN WordPress
# As diretrizes (linhas) entre "BEGIN WordPress" e "END WordPress" são
# geradas dinamicamente e só devem ser modificadas através de filtros do WordPress.
# Quaisquer alterações nas diretivas entre esses marcadores serão sobrescritas.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress
# BEGIN WPvivid_Restore
# As diretrizes (linhas) entre "BEGIN WPvivid_Restore" e "END WPvivid_Restore" são
# geradas dinamicamente e só devem ser modificadas através de filtros do WordPress.
# Quaisquer alterações nas diretivas entre esses marcadores serão sobrescritas.

# END WPvivid_Restore

子域名.htaccess内容 #

# BEGIN LSCACHE
# END LSCACHE
# BEGIN NON_LSCACHE
# END NON_LSCACHE

### Forcing HTTPS rule start
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
### Forcing HTTPS rule end

# BEGIN WordPress
# As diretrizes (linhas) entre "BEGIN WordPress" e "END WordPress" são
# geradas dinamicamente e só devem ser modificadas através de filtros do WordPress.
# Quaisquer alterações nas diretivas entre esses marcadores serão sobrescritas.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

已尝试的排查操作 #

• 启用两个目录下.htaccess的重写、符号链接及脚本权限
• 为该WordPress实例配置新的映射规则
• 调整OpenLiteSpeed面板中的重写、符号链接等设置
• 检查phpMyAdmin中的数据，未发现异常

环境补充信息 #

• 使用插件及主题：WooCommerce、LiteSpeed、Astra主题、WP Forms Lite
• 服务器环境：DigitalOcean + Cloudflare

寻求解决该404错误的方法。

内容的提问来源于stack exchange，提问作者Wagner Caetano