I updated from Appointments+ 1.5.2 to 1.5.6, then placed

Hi,

I updated from Appointments+ 1.5.2 to 1.5.6, then placed the .mo and .po files for my french translation (as usual) in the language folder. However "Free", "Busy" and "Not possible" don't translate. The other words are OK. As you can see in the screenshot, "Next Month" button is translated to "Mois suivant", but not the 3 other words. Access to website granted.

Any ideas?

Thank you,

Dany