Federer & Co$.($Federer$)$ signed a written contract to lease a large neon advertising sign to Harris Bolat, who is in the dry$-$cleaning business, for $$148\mathrm{.}50$ a month. The contract stated that Federer, as the lessor of the sign, would $$at its expense $...$ maintain and service the sign $...[$and would perform$]$ cleaning and repainting of sign in original color scheme as often as deemed necessary by lessor to keep sign in first$-$class advertising condition and make all necessary repairs to sign and equipment installed by lessor."

A few weeks the sign was installed, someone hit the sign with a tomato and $$little spider cobwebs$$ appeared in the sign$$s corners. Bolat repeatedly asked Federer to fix the sign, but Federer did not do so$.$ As a result, Bolat made no further payments and Federer sued Bolat for remainder of the lease payments pursuant to the contract$$s terms. Did Federer make a material breach of the contract?