Mangamirror only copies uploaded chapters from multiple sites. They copied the first up to chapter 44 from the other site (*****go) that was translated by real translators, then mangamirror uploaded another chapter 44 from another website (zhin*****) with bad translations and make it like chapter 45, therefore the numbering of chapters messed up so chapter 51 here is chapter 50 originally, and they keep uploading the bad translations, this notice is meant for the *****go and not from zhin***** where mangamirror copied the recent chapters, in *****go they already upload the real chapter 51 which what this notice talks about, so if you are waiting with the time on the notice, then shouldn't.
A ghost at sangwoo's apartment