If what is there is ok , just unstuck , can you not use a variant of this
bodge that I use. Or is dirt on the tape a problem, presumably no great
currents involved.

Bodge repair for failed conductive epoxy joints
or where LCD zebra strips have lost contact because
pcb has warped slightly or whatever.
Push the section back with folded up
strip of kitchen pan scourer, held in place against the
casing / bracing and cable ties to pcb or something. The coarse open random
mesh of plastic fibres is insulating and
quite consistently compression springy.

Thank you for your suggestion, but I'm not sure what you mean. There
are 96 traces on a cable that is 28mm wide, a very fine pitch. I think
it is going to require a specialized product.