Warning: Computation failed in `stat_summary_hex()`:

Hi, I am having trouble with my stat_summary_hex() when I publish my shinyApp. If I run the app in RStudio, it works just fine, but if I publish it, I get the message: "Warning: Computation failed in stat_summary_hex():". I am very confused and do not know what I did wrong. My original question follows this link for the data and code: https://stackoverflow.com/questions/74967671/problem-publishing-rshiny-app-warning-computation-failed-in-stat-summary-hex