problems after update woocommerce

Hi
I´ve traslated my woocommerce and everything were going fine, untill updated woo plugin. Now traslation is gone (saved in system folder).

But, now when i want to create a new translate for woo (in autor, custom o system folder) and i press “Save” always get this message:

Error: Page not found – <My Web>. Check console output for debugging information

I desactived and active Loko but nothing work fine.
Do i have to uninstall and install Loco again??.. if I have this I lost other plugins’s translate

Cheers
Humberto