Rudder

During upgrade from 6.2 to 6.2

INFO: rudder-server-relay setup complete.
Redirecting to /bin/systemctl stop rudder-jetty.service
error: %pre(rudder-webapp-1398866025:6.2.0.beta2.git202011060227-1.EL.7.x86_64) scriptlet failed, exit status 1
Error in PREIN scriptlet in rpm package 1398866025:rudder-webapp-6.2.0.beta2.git202011060227-1.EL.7.x86_64

rudder-upgrade fails

[root@server vagrant]# /opt/rudder/bin/rudder-upgrade 
INFO: Checking if rudder-web.properties database access credentials are all right... LDAP OK,  SQL OK
Overriding existing techniques
INFO: Correcting permissions on /var/rudder/configuration-repository... Done
# On branch master
nothing to commit, working directory clean
Techniques have been updated, and update branch set to current state of the Techniques
INFO: Checking PostgreSQL service status... OK
INFO: Checking LDAP service status... OK
Plugins were not updated, because connection test is failing, please upgrade your plugins manually
Could not read the conf file /opt/rudder/etc/rudder-pkg/rudder-pkg.conf
get() got an unexpected keyword argument 'fallback'

INFO: The migration has completed successfully.