I have a problem with my site, I will explain in detail my problem.
So, I changed server for my site in wordpress multisite.
after the server change the home page of the site and other items works very well , but most items are inaccessible.
We can not even access the page back office ,
Site url: blog.monsite.com
url back: blog.monsite.com / Wp-admin /
it arrives on the following address: monsite.com / wp-signup.php? new = monsite.com
I know not why, but it urgently
if you could help me.