Inserting image in a post not working sny longer, i need your help please

Hello, please i need help with my blog, i recently renewed my hosting right but now am unable to insert image into post and am not also able to set featured image,when i try to change the post ‘visual’ format into ‘text’ it doesn’t work also. I need help on this please. my blog is http://www.fixmeblog.com I’ll be waiting for your responses. thanks.