Go the the rear of the seat remove the middle cover ,
there should be two straps hanging down ? number 1&2 ?
it looks like your strap has come off of something it should route through a guide (metal wire to orient the strap correctly) front and rear of the seat.
I suspect it’s drop out of the orientation device and will not pull the actuator in the correct way.
if you can’t work it out tomorrow let me know and I’ll have a look at mine and post some pics (it’s pitch black ATM)
edit, the seat base lifts up enough to gain access , rather than crawl on the floor