Tried deploying app on shiny.io - error message

[EtBooth]

I tried to deploy the app from my local machine to see if there were any issues with deployment. But running the app on shiny.io but it just opens a tab with this error message:

An error has occurred
The application failed to start.

exit status 1

I checked the application logs and this is what it says.

2023-03-11T08:40:52.359567+00:00 shinyapps[8540112]: Error in eval(ei, envir) :
2023-03-11T08:40:52.359600+00:00 shinyapps[8540112]: Shiny application exiting ...
2023-03-11T08:40:52.359605+00:00 shinyapps[8540112]: Error: mapping data lacking for the following countries: Korea.North
2023-03-11T08:40:52.359617+00:00 shinyapps[8540112]: Calls: local ... tryCatch -> tryCatchList -> tryCatchOne ->
2023-03-11T08:40:52.359620+00:00 shinyapps[8540112]: Execution halted

I've run the app locally and its perfectly fine. Perhaps it is something to do with version of some of the packages used? I'd appreciate any help on this. Thank you.

[jurteagat]

Sure I also found a similar error:

Error in eval(ei, envir) :
Error: mapping data lacking for the following countries: Korea.North