If your Voltaic Charge server is crashing everyone who joins, it is probably because Minecraft Comes Alive has just taken effect on villagers. To fix this, you simply must restart your server. It's inconvenient, there is not real fix that I can see currently, so I recommend server owners to spawn a villager in and then restart the server before making the server public. This seems to be affecting individual save files so if you do not want to do that fix again, just don't start a new world for your server.
Install Voltaic Charge
Step 1
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Step 2
Type in the modpack name (Voltaic Charge) or paste the following url into the search box.
Step 3
Finally, click Install at the bottom right of the launcher after you select Voltaic Charge from the list on the left. The launcher will handle everything else!