Hello,
Please check this topic – https://www.8theme.com/topic/unknown-theme-content-error/
https://xstore.helpscoutdocs.com/article/100-how-to-speed-up-my-website Also, try to disable Variation Swatches from Shop and Categories via Theme Options > WooCommerce > Shop > Shop elements > Variation swatches > Swatch Position > Disable
Regards
