Version 1.2 fixes an important bug that was preventing versions 1.0 and 1.1 from working without EpicSpawners installed. That's my bad - poor testing on my part.
Latest tests on paper-204 for Minecraft 1.16.3 with EssentialsX 126.96.36.199
New commands :
/NoSpawnerForAFK log on
/NoSpawnerForAFK log off
Turn debug-logging in your console window on or off to check what's going on in the plugin.
Logging will tell you if a spawn was allowed, or if a spawn was blocked either because players were AFK, or there were no players in range.