From the bot:

Error loading ../../../binaries/data/mods/public/simulation/templates/template_structure_military_siege_tunnel.xml: No such file or directory at Entity.pm line 23.

Forum links to committed work is always appreciated in case someone reads this.

https://wildfiregames.com/forum/index.php?/topic/27169-loading-error/

Also, there is kart instead of cart in one occasion.

fixed by rP23095

Whilst I'm not opposed to adding new towers per se, I think it's premature to enable them already, partly because not all civilizations have them, and partly because their stats seem to come from out of nowhere.

In rP23094#40122, @Nescio wrote:

Whilst I'm not opposed to adding new towers per se, I think it's premature to enable them already, partly because not all civilizations have them, and partly because their stats seem to come from out of nowhere.

I guess the fact that not all of the civ have them was intended by Lordgood.

Adding new entities (art) is great, but enabling them affects gameplay balance, so probably deserves more discussion and testing.