Error in seq.int(from, to, length.out = n) : 'to' must be a finite number #81

Question

I am attempting to plot a cophylo, and I get this error: Error in seq.int(from, to, length.out = n) : 'to' must be a finite number and I get this plot:

Cophylo plot gone wrong

My code: plot(obj1,fsize=c(0.05,0.05), link.type="curved", lwd=c(0.2, 0.2))

What is going on here?