Today, uploading a document in
LaTeX to Overleaf, I got the following error while waiting for the remote preview:
OMG! What’s happening? I never received that error from my
classicthesis-preample.sty script. Googling I found the answer:
bflabel is not being used in the newest implementation of
aclabelfont had been introduced without backward compatibility.
Great! The problem is due to the fact that I like building packages by myself: I installed
acronym.sty probably a couple of years ago and I have never updated it.
So I removed the old package, I downloaded and built the new package and I was able to build my document again.