Is this a fiberglass pan? Acrylic? If the thing was bedded in mortar, it wouldn't deflect and the bottle would have either broken (they don't have glass ones anymore), or bounced without doing much of anything. At this point, you might get a temporary fix with some silicon, but it won't last or look great. If you took it out, you might be able to make a reliable patch, but then trying to refinish the inside to look good takes skill, and the cost likely more than replacing it.