It is hard to tell what is going on with the floor. Is there anything on top of the floor right now?
In modular flooring you must have a gap for two reasons - The 1st being expansion and contraction tolerance and the 2nd is to allow the sub- floor to breath.
The gaps seem bigger than usual in the photos? as almost if it were being pulled to maxinum contraction. The entire floor needs to be installed, trimmed and climate settled ( a few hours) prior to putting back heavy materials on top of it. It is always best to place everything back on a floor at the max heat of the day.
Feel free to call and we will walk you through step by step...