v2.08.160 firmware - broken launcher

in the changelog it mentions:

Fix Regexp handling of unescaped '.' in character group: /[.]/ (fix #1948)
Now error if using (unsupported) RegExp backreferences

if (cH>='1' && cH<='9') {
      jsExceptionHere(JSET_ERROR, "Backreferences not supported");
      return false;

I'm guessing one of your apps is using regexp in an invalid manner, possibly. Either that or there is an issue deeper.