I upload my site joomla with the last version, when I load my page for first time everything is fine, even if i navigate in menus but when I click in th english flag and I navigate with the menus and I return to the spanish lenguaje doesn´t load anything everthing looks white and the URL looks like this https://mywebsite.com the www. dissapear and also appear the /es something like this https://mywebsite/es I dont know what to do, and i know its not the update beacuse i do the test local and everything works fine.

My site is running on Joomla3.

When I load my page for first time everything is fine (the default language is Spanish) -- even if I navigate in menus.

However, when I click the English flag and I navigate with the menus then I return to the Spanish language, it doesn't load anything -- everything looks white, the URL looks like this https://mywebsite.com, the www. is removed and it also contains the /es something like this https://mywebsite/es.

I don't know what to do. I know it's not the update because I when I test locally, everything works fine.