Remove redirect chain shortpixel code after removing the plugin

I´m no longer using the shortpixel plugin. Even after do what you recommend o delete all shortpixel code at:
https://docs.shortpixel.com/article/81-remove-all-the-shortpixel-related-data-on-a-wp-website

and deleting the plugin, my site is trying to load many of the images through shortpixel so now I´m facing the issue:
“Remove the following redirect chain if possible”

My site is https://www.1life2travel.com/

How I could solve this issue?

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