in the log it says:
-----LOADING MODS-----
Skipping Add-Ons...
wtf
Thats in my console log too, but my addons still run. I'm just taking a wild guess, but I think it has to be put in as a mod or as the base folder to be executed, and Add-Ons is skipped as a mod due to a lack of main.cs. Either way, I doubt skipping Add-Ons as a mod has anything to do with it.
Switch-Blade, start a Blockland server, wait until it's done loading, open your console, take a look at the last few lines in it. Exit Blockland, open your console log, scroll to the bottom, and read the last few lines in it(you will probably have a few extra lines, added when you exit Blockland, close the server, Ect.). Are they the same as the lines from the console?