The cause of this damage is often such things as a flood slow leak from plumbing improper maintenance and spills.
Water flood on laminate flooring.
Set up a couple 20 box fans also turn up the heat.
If the water is not pervasive you may be able to extract it with a wet dry vacuum.
Go over every tile individually when you check.
As long as you wipe up any spilled water promptly the floor should be no worse for the wear.
Laminate flooring is technically resistant to water damage.
Water damage to laminate flooring is a common occurrence seen by laminate flooring inspectors.
If you spill some water on laminate flooring but promptly wipe it up the floor will suffer no damage.
When laminate gets saturated by water it absorbs the moisture which in turn breaks down the structure of the flooring.
Flooding or other significant water damage is a different story.
Unfortunately the situation changes if and when flooding occurs.
If laminate flooring becomes saturated with water it tends to warp quickly.
Tiles can also be pushed apart by water damage.
There are a number of signs that point to your floor being water damaged including bending or cracking.
When laminate flooring is saturated with water especially for a period of time damage will occur.
After you get readily vac d water prop the vac floor style nozzle in the lowest spot leave it running and it will draw the water to it.
Just about any way you can get water onto many laminate floors seems to result water damage to many of these laminate floors.