Error with image format in Bludit v3.20

[pivari]

The site is https://tech-med.it/ and the version is bludit 3.20
The error is strange: it's like if the bludit can't know the mime format of the image. I've tried with jpg and png

fp

[pivari]

PLEASE HELP ME!

In the error_log

[24-Apr-2026 18:28:41 Europe/Rome] [ERROR] [3.20.0] [/admin/ajax/upload-images] Tipo MIME del file non supportato. Formati permessi: image/gif, image/png, image/jpeg, image/svg+xml, image/webp