Invalid Text String showed, when joining to a group!

Bug report:

 

When you’re joining to a group through the Pilot applications feature, if the Leader of the group has you in his Ignore list, you get an invalid message shown (text string - placeholder).

There should be a proper description instead. I am proposing the example here. Thank you, TheDarkMatter [ESB], for helping me discover this bug.

 

Example: An error has occurred while joining a group. You’re being ignored by the user.

 

Screenshot:

b4SBlLY.png

 

Logs: (Check time stamp at 15:33 or 03:33 PM)

[2017.06.30 14.27.37.zip](< base_url >/applications/core/interface/file/attachment.php?id=14760)

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