I have a train station which I want to name "[VARIABLE1] Load" and this causes the mod to crash:

Die Mod Blueprint Variables (0.1.5) hat einen Fehler verursacht, der nicht behoben werden kann.
Bitte informiere den Autor der Mod über diesen Fehler.

Error while running event blueprint-variables::on_gui_click (ID 1)
blueprint-variables/variables-manager.lua:400: malformed pattern (missing ']')
stack traceback:
[C]: in function 'gsub'
blueprint-variables/variables-manager.lua:400: in function 'applyNames'
blueprint-variables/gui.lua:55: in function 'handler'
flib/gui-lite.lua:177: in function <flib/gui-lite.lua:160>

Okay, fixed it :-)
If anyone else wants to deal with the thing until the Space Age comes out, change the patterns to this in variables-manager.lua:

local newNewMatch = "%=(blueprint%-variable%-[%w%-%_]+)"
local newTrainMatch = "(blueprint%-variable%-.+)"

local newDoubleMatch = "([%w%-%]+%=(blueprint%-variable%-[%w%-%]+))"