I forget my Password in my site, So i go to this link to res
http://domain.com/wp-login.php?action=lostpassword
And put my email and send it.
I received an email, But without link to reset my password.
This problem show for all users in my site.
How can fixed this error.
For starters recovering your own access would be good. If email approach fails for you, Codex has Resetting Your Password page which gives instructions for several more approaches.
To troubleshoot the issue in general you should start with disabling plugins / using default theme, and likely checking WordPress core files for modification or simply replacing them with clean copy of core.
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