Error - Application failed to start

I'm reading a text file ( i.e. ,txt file of numeric data) -- using read.table and naming the result 'housescal' . However 'shinyapps.io' fails to find the file 'housescal' . Everything works locally. I read the file within the renderPlot statement . What is going on here?

Here is the log:
2022-05-30T22:01:11.345442+00:00 shinyapps[6399473]: Shiny application starting ...
2022-05-30T22:01:11.345487+00:00 shinyapps[6399473]: Error in value[3L] : object 'housescal' not found
2022-05-30T22:01:11.345537+00:00 shinyapps[6399473]: Calls: local ... tryCatch -> tryCatchList -> tryCatchOne ->
2022-05-30T22:01:11.345585+00:00 shinyapps[6399473]: Execution halted
2022-05-30T22:01:11.345635+00:00 shinyapps[6399473]: Shiny application exiting ...

Are you uploading the file along your app's code when you deploy the app? Other than this, I think it would be impossible for us to know what is going on without seen the app's code.

To help us help you, could you please prepare a reproducible example (reprex) illustrating your issue? Please have a look at these resources, to see how to create one for a shiny app