Today I have a big problems with unknown symbols in database because all RevolveR CMS filters are works fine. Strange anonymous comment was break header() PHP instruction.
I found this symbols in left sidebar where latest comments are shown. There are an hidden error in string where comment is showed. Four hours we find this bug and after I del this comment PHP header steel works again. This error become after I install Mac OS Mojave beta. Seems it's beta version Safari bug.
So, this update with numbers 1.2.1 includes only user ban option. Code available on GitHub.