Error detecting locale: Error in read.table(file = file, header = header, sep = sep, quote = quote, : ligne finale incompl�te trouv�e par readTableHeader dans 'raw' (Using default: en_US)

I wrote a new version of the www.babipluie.org where rainfall information is now rasterised. This new version runs fine locally.
The program is successfully deployed on shinyapp.io but rainfall rasterised maps and basemap (Openstreetmap) are not visible on screen. On the "Deploy" window of Rstudio, I get the following message
"Error detecting locale: Error in read.table(file = file, header = header, sep = sep, quote = quote, : ligne finale incompl�te trouv�e par readTableHeader dans 'raw' (Using default: en_US)"
If the function "addRasterImage" (used to overlay the rainfall map on the base map) is removed and the program pusblished again on shinyapps.io, there is no error and the basemap is visible.
Is there a bug of compatibility for addRasterImage on shinyapps.io ?