plot solutions error

[aforniesm10]

Error with plotSolutions at the end of the script:
Error in model.frame.default(formula = values(x)[[y]] ~ midpt) :
invalid type (NULL) for variable 'values(x)[[y]]'
Calls: run_ichorCNA ... loess -> eval -> eval -> -> model.frame.default
In addition: Warning message:
In regularize.values(x, y, ties, missing(ties), na.rm = na.rm) :
collapsing to unique 'x' values
Execution halted

[luederm]

I am also getting this error. The last plot generated is SAMPLE_fit_chr1.pdf