Problem fetching number of unpaid invoice in Client area

[Rabab]

Hi everyone,

My WHMCS instance is having an issue on fetching number of unpaid invoices in Client area, it seems that the problem is related the language choosen . When I choose ENGLISH as a lang i got 7 unpaid invoices ( is the exact number) , but when i choose french or arabic i got 0 unpaid invoices , you'll find below screenshots for the problem :

LANGUAGE : ENGLISH

 

Debugging output : 

As you see below the clientsstats object has  (7) as value of numunpaidinvoices field

 

LANGUAGE : FRENCH

As you see below the clientsstats object has  (0) as value of numunpaidinvoices field

What could be the problem and how i could resolve it ?

Thanks in advance !