sitemap not working

XML Parsing Error: not well-formed
Location: https://blissfulnoises.com/sitemap_index.xml
Line Number 122, Column 83:
[0] => SELECT * FROM wp_wfblocks7 WHERE IP = ‘\0\0\0\0\0\0\0\0\0\0?

sitemap is not showing up and i think my wordfence security plugin is interferring with rankmath but i am not sure which setting.
i have tried all options but couldn’t find any.

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