If it is a large area or you cannot get it off by hand use steam cleaning.
How to remove sticky floor protector.
I d try hair spray alcohol maybe even try to contact the company that made that plastic runner.
Daily schedule use a microfibe r mop or soft cloth to remove dirt dust hair and other particles to protect your floor from surface damage or scratches.
The plastic probably had some kind of adhesive.
Purchase a citrus based cleaner or solvent that lists adhesive removal as a usage on its label.
I know when we remodeled our contractor bought in a cloth looked like muslin runner to protect our carpeting.
If the amount of adhesive left behind is relatively small you may not even know it s there until weeks or months after removing the film.
However improper cleaning can leave a sticky film behind.
This practice also prevents stickiness from building up and become stubborn stains.
Apply the vinegar to the affected area of the vinyl surface and allow it to soak for 10 to 15 minutes to soften the adhesive.
Durable laminate flooring resists stains and cleans up quickly making it a ubiquitous choice for covering kitchen floors.
The only thing i would do is test with some kind of adhesive remover.
In severe cases the carpet will feel sticky and the problem will be very obvious.
The adhesive is colorless so any residue on the floor will be invisible at first.