If wou install endsless so with a default language some applications cannot get the correct locale. Examples:
When open SublimeText:
Your system's locale is set to a value that can not handle non-ASCII characters. Package Control can not properly work unless this is fixed.
On Linux, please reference your distribution's docs for information on properly setting the LANG and LC_CTYPE environmental variables. As a temporary work-around, you can launch Sublime Text from the terminal with:
LANG=en_US.UTF-8 LC_CTYPE=en_US.UTF-8 sublime_text
When open FileZilla:
A local filename could not be decoded.
Please make sure the LC_CTYPE (or LC_ALL) environment variable is set correctly.
Nothing special we need to do to reproduce the error, only install SublimeText or FileZilla with and out-of-the-box Endless SO 3.3.14 in a language like Spanish or Catalan.