Move your hub back to where it belongs (a centrally located position in your house I hope). After removing the bulbs, factory reset your lock and re-pair it with the hub. If it was routing through the bulbs, which I, @corerootedxb and @mike.maxwell suspect, then what you have done is you've broken the route the lock had established through the bulbs (which was essentially a dead end anyway).
If you can now pair the lock and it's operational, then the bulbs were the problem. If you cannot pair the lock and you have a repeater midway between the lock and the hub, then you might have a problem with the lock or its Zigbee module. However, it is worth trying moving the hub closer to see if it pairs and functions correctly, but only after you have tried pairing in place. Moving the hub closer and having it work only tells you that your repeater isn't doing the job you thought is was. It doesn't solve your issue unless you intend to move the hub close to your lock and leave it there. And if that location isn't central to your home, I wouldn't use it anyway.
Keep in mind that removing the bulbs may not give you a correct route from hub > zigbee outlet > door lock for a few days. You can speed up the process by unplugging the hub for 20 minutes, then boot (without the bulbs screwed in) and wait for the mesh to heal. Even then it can take up to 24 hours, but with a single repeater it probably won't take that long.
Contact @bobbyD for your owner badge.