Thank you for the reply to my message.
Below is the message i got from the log:
2020-05-19T01:42:35.791569+00:00 shinyapps[2313872]: 6: eval
2020-05-19T01:42:35.791569+00:00 shinyapps[2313872]: 5: eval
2020-05-19T01:42:35.791567+00:00 shinyapps[2313872]: 12: fn
2020-05-19T01:42:35.791568+00:00 shinyapps[2313872]: 7: connect$retry
2020-05-19T01:55:11.466429+00:00 shinyapps[2313872]: Warning: namespace ‘kernlab’ is not available and has been replaced
2020-05-19T01:55:11.466431+00:00 shinyapps[2313872]: by .GlobalEnv when processing object ‘svm’
2020-05-19T01:55:13.209233+00:00 shinyapps[2313872]: Warning: namespace ‘modeltools’ is not available and has been replaced
2020-05-19T01:55:13.209236+00:00 shinyapps[2313872]: by .GlobalEnv when processing object ‘stock_tree2’
2020-05-19T01:55:13.210017+00:00 shinyapps[2313872]: Warning: namespace ‘party’ is not available and has been replaced
2020-05-19T01:55:13.210019+00:00 shinyapps[2313872]: by .GlobalEnv when processing object ‘stock_tree2’
2020-05-19T01:55:13.231449+00:00 shinyapps[2313872]: Warning: namespace ‘plumber’ is not available and has been replaced
2020-05-19T01:55:13.231451+00:00 shinyapps[2313872]: by .GlobalEnv when processing object ‘r’
2020-05-19T01:55:13.242725+00:00 shinyapps[2313872]: Attempting to load the environment ‘package:stats’
2020-05-19T01:55:13.593888+00:00 shinyapps[2313872]: Warning: namespace ‘xgboost’ is not available and has been replaced
2020-05-19T01:55:13.593890+00:00 shinyapps[2313872]: by .GlobalEnv when processing object ‘fit_xgb’
2020-05-19T01:55:14.735179+00:00 shinyapps[2313872]: Warning: namespace ‘knitr’ is not available and has been replaced
2020-05-19T01:55:14.735181+00:00 shinyapps[2313872]: by .GlobalEnv when processing object ‘pr’
2020-05-19T01:55:15.484264+00:00 shinyapps[2313872]: Server version: 1.8.2-10
2020-05-19T01:55:15.484265+00:00 shinyapps[2313872]: LANG: en_US.UTF-8
2020-05-19T01:55:15.484281+00:00 shinyapps[2313872]: shiny version: 1.4.0.2
2020-05-19T01:55:15.484281+00:00 shinyapps[2313872]: R version: 3.6.1
2020-05-19T01:55:15.484281+00:00 shinyapps[2313872]: httpuv version: 1.5.2
2020-05-19T01:55:15.484298+00:00 shinyapps[2313872]: knitr version: (none)
2020-05-19T01:55:15.484298+00:00 shinyapps[2313872]: jsonlite version: 1.6.1
2020-05-19T01:55:15.484298+00:00 shinyapps[2313872]: RJSONIO version: (none)
2020-05-19T01:55:15.484281+00:00 shinyapps[2313872]: rmarkdown version: (none)
2020-05-19T01:55:15.558349+00:00 shinyapps[2313872]: Starting R with process ID: '25'
2020-05-19T01:55:15.572049+00:00 shinyapps[2313872]: Loading required package: lattice
2020-05-19T01:55:15.484305+00:00 shinyapps[2313872]: htmltools version: 0.4.0
2020-05-19T01:55:15.484474+00:00 shinyapps[2313872]: Using pandoc: /opt/connect/ext/pandoc2
2020-05-19T01:55:15.551384+00:00 shinyapps[2313872]: Using jsonlite for JSON processing
2020-05-19T01:55:15.558348+00:00 shinyapps[2313872]:
2020-05-19T01:55:15.579052+00:00 shinyapps[2313872]: Loading required package: ggplot2
2020-05-19T01:55:15.739999+00:00 shinyapps[2313872]:
2020-05-19T01:55:15.740000+00:00 shinyapps[2313872]: Listening on http://127.0.0.1:35464
2020-05-19T01:55:26.602817+00:00 shinyapps[2313872]: Warning: Error in : Required package is missing
2020-05-19T01:55:26.609989+00:00 shinyapps[2313872]: 134: stop
2020-05-19T01:55:26.609990+00:00 shinyapps[2313872]: 133: checkInstall
2020-05-19T01:55:26.609991+00:00 shinyapps[2313872]: 132: train.default
2020-05-19T01:55:26.609991+00:00 shinyapps[2313872]: 130: train.formula
2020-05-19T01:55:26.609992+00:00 shinyapps[2313872]: 128: <reactive:lm_model> [/srv/connect/apps/LoanRiskPredictor/app.R#142]
2020-05-19T01:55:26.609992+00:00 shinyapps[2313872]: 112: lm_model
2020-05-19T01:55:26.609993+00:00 shinyapps[2313872]: 93: output$prediction_output
2020-05-19T01:55:26.609992+00:00 shinyapps[2313872]: 111: renderPrint [/srv/connect/apps/LoanRiskPredictor/app.R#166]
2020-05-19T01:55:26.609993+00:00 shinyapps[2313872]: 110: func
2020-05-19T01:55:26.609993+00:00 shinyapps[2313872]: 94: origRenderFunc
2020-05-19T01:55:26.610004+00:00 shinyapps[2313872]: 7: connect$retry
2020-05-19T01:55:26.609994+00:00 shinyapps[2313872]: 13: runApp
2020-05-19T01:55:26.610004+00:00 shinyapps[2313872]: 12: fn
2020-05-19T01:55:26.610004+00:00 shinyapps[2313872]: 6: eval
2020-05-19T01:55:26.610005+00:00 shinyapps[2313872]: 5: eval