Hello fellow grower happens a lot an easy fix go ahead spray it down with some purified water or RO water to get the seed wet again an should be able to remove it self after a day if not an still moist go ahead an very nicely try to open it up an remove nicely. if try to remove while dry can damage the plant. Or plant can come with it. The new growth leaves might come out twisted or looked pinch but it’ll be ok. As the plant develops new leafs. Happy growing.