My host provider is disabled PHP mail command.
I have change config/production/config.yml
debug.show_errors: true
So today i got new error message, and no idea what todo.
[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions_messenger.php on line 1623: stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages: error:0A00014D:SSL routines::legacy sigalg disallowed or unsupported