Two picture blocked in wp-admin, not on all subsites of my network

I checked my cache, I contacted my hosting support, I checked the CF forum,
I was pointed to CF image blocking
I get

Error 1020

For these two images
wp-content/plugins/pretty-link/images/pretty-links-logo-color-white.svg
wp-content/plugins/hustle/assets/images/icon.svg

other subsites of my multisite are displaying the picture well

How can this be solved?

A post was merged into an existing topic: Wp-admin firewall settings gives me Error 1020