Problem when writing

Hi. I just migrated 2 blogs from one hosting to another one and there seems to be a problem in the new hosting. When I want to write, the Visual or Code interface in the editor page (I’m not sure they are called like that in English, I’m Spanish) are fixed and can’t be changed and so, I can only write with the code method. Too, in the plugins page, the edit column doesn’t appear.

I installed a new blog in the new hosting just in case I was doing something wrong in the migration, but the same happens with the new one. What’s going wrong?

Cheers