Can't say exactly what without a reprex (See the FAQ: How to do a minimal reproducible example reprex for beginners). The data argument to ggplot appears to have two rows with one or more NA variables. Exclude those and you should be ok.
Can't say exactly what without a reprex (See the FAQ: How to do a minimal reproducible example reprex for beginners). The data argument to ggplot appears to have two rows with one or more NA variables. Exclude those and you should be ok.