Every time I click the left click of my mouse the game fails

Every time I press the left key in Gmod the game shuts down and I can’t play it, I have tried everything, I have desinstalled it, changed my computer, the game cache, I can use the menu, but when I play online or alone I can’t press the left key because the game crashes (there dosen´t appear any message). Please help

[editline]21st September 2016[/editline]

sorry for bad english

Post the contents of your ‘garrysmod\cfg\config.cfg’ file.

EDIT:

or just the lines that start with ‘bind’.