Hello,
Looking at the logs from your project I see multiple occasions where the R session crashed. This typically happens on cloud when memory use exceeds the 1GB limit. I also found an R error which may be useful:
ERROR r error 4 (R code execution error) [errormsg=Error in x[[n]] : ||| attempt to select less than one element in integerOneIndex|||];
Hope that information is helpful.
Best,
Ming