LVT Repair - Adhesive - Contact Spray?

Hi All

Be grateful for your advice please.

LVT floor laid a couple of years back. There's one area where it's lifted. It's pretty small, probably need to lift 3-4 pieces of LVT.

Please can you recommend:
- best adhesive to use to glue down
- any prep, or cleaning off that I need to do?

Thank you.

 

Contact spray will work or use ht or ps

 

Thanks @dazlight

Forgot to mention that the floor has underfloor heating.

Any recommended contact adhesives?

Cheers

 

Contact spray will be best