cant find

Which menu?

The left menu first option

Those links are all generated by core WordPress functions related to the admin menu, the plugin doesn’t have much to do with them.

Do you have any plugins installed for altering the admin menu?

I have switch off all plugins but same problem. on another wordpress i dont have this problem

Does the wp-admin directory exist in the install folder?

Sure it is, everything is working normal.

I think its a redirect problem

when i open the link
wp-admin/admin.php?page=wp-statistics/wp-statistics.php

WP redirect it to

wp-statistics%2Fwp-statistics.php

and thats not happend. Why not link direct to it?

That’s not WP redirecting it as that file doesn’t actually get you to the menu item’s content. As I said, the menu item and link gets generated by WP, not WP Statistics.

Check your .htaccess file (or whatever you use) as it’s likely something that’s been done to try and lock down WordPress.

Do you have any security plugins install? If you disabled them when you tested before, make sure you regenerated the .htaccess file WP uses by going to Settings->Permalinks and hitting the save button (you don’t have to do anything, WP will regenerate the .htaccess file no matter what).

Well have found it.

Have try another browser and it work (chrome) with firefox i have the problem.

Clear the compleet cash of firefox and it work

Good to hear.

But realy strance, why only 1 site?

but its working ??

Don’t know, something on the local install went weird at some point and FF cached it.