Form data in French not received

I use the same process.cfm to process the form data submitted.
The form is slightly different in text for English and French but is otherwise the same.

The form data are received ok for English but no data is received for French.
process.cfm use the form data as follows:
<cflog file=“log” text=“FORM.Institution_Name #FORM.Institution_Name#”>

FORM.Institution_Name is not received(defined) in French.

The http message is captured as follows,

English:
Institution_Name_Required=Veuillez+entrer+le+nom+de+l&#37;27%E9tablissement.%0D%0A%0D%0A&Proposal_Title_Required=Veuillez+entrer+le+titre+de+la+production.%0D%0A%0D%0A&Contact_Given_Name_Required=Veuillez+entrer+le+pr%E9nom.%0D%0A%0D%0A&Contact_Surname_Required=Veuillez+entrer+le+nom.%0D%0A%0D%0A&Contact_Title_Required=Veuillez+entrer+le+titre.%0D%0A%0D%0A&Contact_Email_Required=Veuillez+entrer+l%27adresse+de+courriel.%0D%0A%0D%0A&Proposal_Password_Required=Veuillez+entrer+le+mot+de+passe.%0D%0A%0D%0A&Institution_Name=Testing+Test+Institution+French&Proposal_Title=Testing+Test+Production+French&Contact_Salutation=Mr.&Contact_Given_Name=albert&Contact_Surname=Kao&Contact_Title=Web+Developer&Contact_Email=t%40t.com&Proposal_Password=yyy&Proposal_Password2=yyy&next=Poursuivre+

French:
Institution_Name_Required=Please+enter+Name+of+Institution%0D%0A%0D%0A&Proposal_Title_Required=Please+enter+Title+of+production%0D%0A%0D%0A&Contact_Given_Name_Required=Please+enter+Given+Name%0D%0A%0D%0A&Contact_Surname_Required=Please+enter+Surname%0D%0A%0D%0A&Contact_Title_Required=Please+enter+Title%0D%0A%0D%0A&Contact_Email_Required=Please+enter+E-mail+Address%0D%0A%0D%0A&Proposal_Password_Required=Please+enter+Password%0D%0A%0D%0A&Institution_Name=Institution&Proposal_Title=Testing+Test13+Production&Contact_Salutation=Mr.&Contact_Given_Name=albert&Contact_Surname=Kao&Contact_Title=Web+Developer&Contact_Email=t%40t.com&Proposal_Password=zzz&Proposal_Password2=zzz&next=Continue+