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There must be an effect, so it's better to treat it with some flavors and disinfectants.
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If it's a wooden tableware, it's OK to wash it, and if it's plastic, it's OK.
Then you have to find out where the water source comes from, if it is seeping in from the outer wall, it is a rain leak, not then it depends on whether it is a tap water leak or a water leak.
Knock out the mortar layer on the ground and take a look, but this is a civil engineering problem, go directly to the property!
Analyze the cause of the blockage. If it is a problem with construction or materials, of course the decoration company is responsible, and the shelf life on the installation is two years. If it's a question of use, let's discuss.
First of all, the quality of this tile is not good, the high temperature is not enough billet material miscellaneous, the small factory does, in a room that is often alternating hot and cold, bathing room is easy to appear, and the kitchen is less likely. If it is a white tile, it is recommended to use white putty and white cement to carefully apply and cover, or ask a professional master to remove this tile and replace it with a new one.
They should be responsible for looking for decoration, and the tiles will not fall off with good things.