[FIX] Charts: Fix Fatal error rendering template file facet_charts2.tpl
This MR should fix the issue below:
Error
/temp/templates_c/en_social^774b7935fbbcb06e5e239b5baa963071ff7bd0ec_0.file.facet_charts2.tpl.php in content_64abfbbddcc4a6_70032743
Attempt to modify property "value" on null
Related task: https://avan.tech/item93099
Glitchtip : https://app.glitchtip.com/evoludata/issues/2379831?project=3550
Edited by Bruno Kambere