Hi,
Thank you for the report about the French translation. I'll pass that along to the person who updates the French translations.
As
far as your error, I can't quite reproduce it. Which phpMyAdmin version
are you using?? It could be because you're using a SQL keyword
"password" as a column name but haven't properly escaped it; you could
try instead
INSERT INTO users (pseudo,firstname,lastname,email,`password`)
(or
even better, change the name of 'password' to something else entirely
to avoid such need to quote), although that's just a guess.
Isaac