How do l fix laminate boards that are lifting?

https://homeguides.sfgate.com/repair-lifted-laminate-countertop-29150.html

Years ago in my first place of my own the laminate counter in the bathroom started lifting. I just used a hot glue gun and glued it back down. Took me about 5 minutes and looked like new again.

Hi, Billie!

What surface is laminate - the floor or a countertop? If it is a countertop, it can be adhered with contact cement applied with a small brush. If it is a floor, it’s going to depend on the type of flooring: glued down or click-lock floating. If it is a glued down floor, contact cement will also work. If it is a click-lock floating floor, the subfloor underneath could possibly be buckling (I’ve been through that before) and there really isn’t anything temporary that can be done. Do you mind replying and letting us know what surface is laminate?

https://homeguides.sfgate.com/laminate-flooring-lifted-middle-99248.html

You can use a hair dryer to heat the laminate boards then put some heavy books or bricks on the floor for a few days.

So what is wrong with the floor? is it warped due to getting wet, did it buckle, are boards popping out? be more specific