Hi, can you please generate debug report from HMWP start tab and post it here as private reply.

Also, set “rename plugins” option in Permalinks & URLs tab to “all plugins”.

If still the issue then please let us know your site’s wp-admin login details as private reply so that we can look into it further.

Please check the screenshot – https://www.screencast.com/t/eg9yWvEHeiO

To replace the text in URL you have to add replacements in “replace urls” option under Replace Tools tab like below:

wp-content/plugins/boombox-theme-extensions/boombox-reactions/svg/lol_anime.svg ==> lol_anime.svg

And to replace the text other than those in URLs, you’ll need to add replacements in “replace in html” option like below:

boombox-styles-min-css ==> bx-styles-min-css
boombox-primary-style-inline-css ==> bx-primary-style-inline-css
attachment-boombox_image ==> attachment-bx_image
size-boombox_image ==> size-bx_image

Note: while replacing CSS class names like attachment-boombox_image, size-boombox_image, etc.; you should check your site after the replacement as sometimes it might break the site layout. In such case remove the corresponding replacement.