text editor. cant change font color

[gub]

i can use all formatting options exept changing the font color. i get a general error: server error (451 unavailable for legal reasons)
same problem with paragraphs

elementor Version 2.9.3 re-installed
WordPress 5.3.2

update
also can't insert ()

 

[sonnesworld]

I have the same issue! Everything updated today. Have you found any solution?