Error: Call to a member function fetch_object() on string in /volume2/web/include/DBGene.php on line 185

Call Stack:
    0.0002     353528   1. {main}() /volume2/web/gene_arbre.php:0
    0.1822     397864   2. DBGene->GetArbre($id = '61391') /volume2/web/gene_arbre.php:19
    0.1823     397864   3. DBGene->GetIndividu($id = '61391') /volume2/web/include/DBGene.php:111