Hello, we recently tried to update our development server to 21.05, and it mostly works, but it does not like our LDAP setup, which is unchanged. plack-error.log is filled with errors from this one: Error while loading /etc/koha/plack.psgi: No ldapserver "hostname" defined in KOHA_CONF: /etc/koha/sites/clavius/koha-conf.xml at /usr/share/koha/lib/C4/Auth_with_ldap.pm line 58, <DATA> line 755. Now, we did not touch our LDAP configuration, which was correct and working with 19.11. Can somebody help find out what changed? Our ldap configuration is like this now: <ldapserver id="ldapserver" listenref="ldapserver"> <hostname>ip.address.for.server</hostname> <base>ou=users,dc=domain,dc=example,dc=org</base> <replicate>1</replicate> <update>1</update> <!-- update existing users in Koha database --> <auth_by_bind>1</auth_by_bind> <principal_name>uid=%s,ou=users,dc=domain,dc=example,dc=org</principal_name> <mapping> <!-- match koha SQL field names to your LDAP record field names --> <firstname is="givenname" ></firstname> <surname is="sn" ></surname> <address is="postaladdress" ></address> <city is="l" >Tijuana, BCN</city> <zipcode is="" ></zipcode> <branchcode is="" >TJNA</branchcode> <userid is="uid" ></userid> <password is="" ></password> <email is="mail" ></email> <phone is="" ></phone> <categorycode is="" >STUDENT</categorycode> <privacy is="" >1</privacy> </mapping> </ldapserver> Thanks. -- Hector Gonzalez cacho@genac.org