help(Bhattacharya)

[SashaLucy]

Dear Tobias Mildenberger,

Thank you for creating TropFishR! I am new to the package and am having a few issues figuring it out.
I am trying to run the example set out in help(Bhattcharya) with the synLFQ1 data, but every time I select points 19 - 23 I am faced with the error code below:

Error in plot.window(xlim, ylim, "", ...) : need finite 'ylim' values
In addition: Warning messages:
1: In sqrt(-interval/b.co1) : NaNs produced
2: In rnorm(n = n_rnorm, mean = l.mean.co1, sd = s.co1) : NAs produced

Could you explain what I am doing wrong?