I'm using SBC Free version.
Initially when I installed, I received an error message the same as the post below, but I carried on and created a calendar and it didn't seem to be a problem.
I've managed to get the calendar to appear on a page, but only using the Generate Token feature. However, when I take the same snippet of code generated by that feature, and place it in the sidebar, it no longer works and simple shows the markup ([sbc title="yes"]).
Is there any way I can get it displaying in the sidebar?