Database Error

I started getting intermittent ERR_CONNECTION_REFUSED messages when trying to reach my site, MarketingRevenue.net (http://marketingrevenue.net/).

So, the site doesn’t always load.

I installed a debugging plugin and found the following database error:

Query:
SHOW FULL COLUMNS
FROM wp_axiny6_aioseo_cache

Caller:

1. AIOSEO\P\C\U\Database->run()
   wp-content/plugins/all-in-one-seo-pack/app/Common/Utils/Database.php:1251
2. AIOSEO\P\C\U\Cache->update()
   wp-content/plugins/all-in-one-seo-pack/app/Common/Utils/Cache.php:137
3. AIOSEO\P\C\U\NetworkCache->update()
   wp-content/plugins/all-in-one-seo-pack/app/Common/Utils/NetworkCache.php:47
4. AIOSEO\P\C\A\Dashboard->displayRssDashboardWidget()
   wp-content/plugins/all-in-one-seo-pack/app/Common/Admin/Dashboard.php:193
5. do_meta_boxes()
   wp-admin/includes/template.php:1443
6. wp_dashboard()
   wp-admin/includes/dashboard.php:271
   
   Component:
   Plugin: all-in-one-seo-pack

Here’s my website information:
WordPress Version: 6.3.1
Theme: Twenty Twenty
Plugins:
All in One SEO
Contact Form 7
Google Analytics for WordPress by Monsterinsights
W3 Total Cache
Wordfence Security