Make sure Wrench Events is in the right folder. Does the file Add-Ons/Support_SpaceTick.cs.noexec exist?
Start a single player server. When you spawn, make a brick and hit it with the wrench. Click the Events button. Check whether anything shows up.
Close the menu, then press Esc and Quit.
Find the file console.log in your main Blockland folder, and attach it to a post here.