Yes, that is probably the problem, when I looked for the text it returned:
[ 0:{ "selector":".bloc-blanc > p:nth-child(1)" "text":" 0 école(s) correspondent à votre recherche " } ]
[ 0:{ "selector":".bloc-blanc > p:nth-child(1)" "text":" 0 école(s) correspondent à votre recherche " } ]
Edit: the page changed and it's not working anymore. Sorry for the false alarm, my bad.