su: ignoring --preserve-environment, it's mutually exclusive with --login

Attaching package: ‘shinydashboard’

The following object is masked from ‘package:graphics’:

    box


Attaching package: ‘DT’

The following objects are masked from ‘package:shiny’:

    dataTableOutput, renderDataTable


Attaching package: ‘dplyr’

The following objects are masked from ‘package:stats’:

    filter, lag

The following objects are masked from ‘package:base’:

    intersect, setdiff, setequal, union

Error: connection to server at "celehs-db-instance.ctkwpvy5lvqg.us-east-1.rds.amazonaws.com" (3.233.39.91), port 5432 failed: Connection refused
	Is the server running on that host and accepting TCP/IP connections?
Execution halted