1.7.1.1 No access at BO after changing one translation

[kerlin]

Hello, sorry, for my bad english.
I'm personnalizing the classic theme. Because there was no Add to cart and View more buttons, I added them.
Because the french translation of View more is too long, I changed it by Détails.

After that, the connexion to the BO became impossible : error 500.

With the debug mode, I can connect at the BO. But I have no error message.

Because I didn't remember where I did the translation (there are more than one View more), I copied the translation directory from a new install but it's always the same.

Could you help me please ?

Thanks !!