Yeelight Pro extensions not working.

I recently bought the main yeelight pro light strip with an extra 4 meters worth of extensions to stick onto my wall. 2 extensions that are connected closest to the main light strip including the main strip is working completely fine by itself. after I plugged in the rest of the cables, 1 and a half of the extensions cables light up (including the main light strip) while the remaining are black and uncontrollable.

How can I resolve this issue?