How can I reactivate my collapsible rows?

[KhallP]

Some time ago I disabled my collapsible rows because I didn't want them to work when we clicked on them (red lines) but now I wanted my collapsible rows at the top (blue line) to work and they don't, I don't remember what code I changed, can anyone tell me to help?

My website: www.pawsplaypet.store