Hi all,

I was trying this code (yesterday it was fine):

```
using Plots, LaTeXStrings
gr()
f(x) = (x^3 - 1) / (x-1)
plot(
f, 0, 6,
legend=false,
framestyle=:origin,
yticks=(-3:3, ["$i" for i in 0:6])
)
```

but today it got error:

**Error showing value of type Plots.Plot{Plots.GRBackend}:**

**ERROR: MethodError: no method matching deleteat!(::UnitRange{Int64}, ::Int64)**

**Closest candidates are:**

** deleteat!(::Vector, ::Integer) at ~/julia-1.7.3/share/julia/base/array.jl:1421**

** deleteat!(::Vector, ::Any) at ~/julia-1.7.3/share/julia/base/array.jl:1468**

** deleteat!(::BitVector, ::Integer) at ~/julia-1.7.3/share/julia/base/bitarray.jl:949**