Opening (table) is not working
There is a problem on ggplotgui startup, an error with DataTable does not load data.
"DataTables warning: DataTables_Table_0 - requested unknown parameter '4' for row 0.
Same issue here. I load the example data with ggplot_shiny(mpg). Then the loaded table looks like in the screenshot below - seems like it is not reading the column breaks correctly?
The same thing happens also with my own data.
(R version is 3.6.3)

Was there ever a solution found for this error? I have started to have the same issue and have tried uninstalling/reinstalling the entire system to no avail.
I have not been able to solve this issue and ended up not using a GUI anymore. (also not hoping for an "official" fix, as this project seems to be abandoned)
Same error here!

Just for the record, this may be the solution: link.
PS: Thanks for this package, I recommend it when I give lectures.