If after opening the game you see an error "fatally missing blocks and items" while joining our server, a quick fix would be just to restart a game, it works so far for everyone who had this error.
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.
Type in the modpack name (La Belle Epoque - 1904) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select La Belle Epoque - 1904 from the list on the left. The launcher will handle everything else!
If after opening the game you see an error "fatally missing blocks and items" while joining our server, a quick fix would be just to restart a game, it works so far for everyone who had this error.