Starting to get a pretty constant Drop Target 1 error. Each game starts with the #1 drop target up and hitting it will indeed drop it, however when two balls are locked in, they won't release. Both ball jam-up behind the #1 which will not drop. The long spring that attaches to the black plastic drop target was indeed fouled, but the error still occurs after reinstalling this spring correctly (correct to my knowledge). Can anyone share any common experiences and how to rectify this problem? Many thanks to all who contribute to this board! I'm new to this hobby, so not privy to many tricks of the trade in troubleshooting!