laying it on side to transport now after plugging it on will not cool

Anonymous 8526, what you need to do is leave it up right for at least a day before plugging it in. This will allow the oil to hopefully run back into the compressor. Sometimes that’s all it needs. Other times not so lucky. This can cause restrictions in the sealed system and can be very costly. Once you plug it in allow about 15 -30 min. Remove the access panel to the compressor behind the unit. During this 15-30 min you’ll heard strange sounds but if the compressor gets real hot, too hot to touch, unplug it and wait another day and try again. Good luck.