Cannot read backend password from /usr/local/var/urbackup/pw.txt

client
1

I installed the client on the same computer as the server, when I run the client, I get this error:

[root@comp-fx-8320e-eight-core-033988 .private]# urbackupclientctl start -i
urbackupclientctl: No such file or directory
Cannot read backend password from /usr/local/var/urbackup/pw.txt

In the directory /usr/local/var/urbackup/ I could not find the file pw.txt
I tried to create this file myself but nothing has changed