Oh no! Let's see why that might be!
1) Halogen bulbs and high-wattage bulbs on chandelier-style fixtures produce a ton of heat. That heat can end up weakening the spring effect of the pin inside of the socket over time, causing the pin to be stuck in a downward position. Please ensure that the spring inside of the socket is popped up to make contact with a new LED bulb! You can manually pop the spring up with anything that will reach in there.
2) There may be leftover oil residue on the tips of the bulbs from the manufacturing process, which can affect the electrical current. Please lightly sand down the tips of the bulbs with sandpaper and try to put them back in. We assure you that this will not void your five year unlimited warranty!