i'm in big trouble. I was working on my Magento theme and suddendly something wrong with up my website. i'm using bootstrap but it's not loading my version but the one of a plugin i installed. if i disable the plugin it's loading the useragent css and if i analyze the console i've got this result
my test developement the theme it's correct. so i think i messed up something with magento installation.
Please help, i can kill myself right now.