Single Player: put in your launch options.

UPDATE YOUR GRAPHICS DRIVERS!!!!!!!!!!!!!!
(Do a clean installation if possible)

---

Over time, playing the game, updating the game, or problems with RAM, hard drives, or SSDs can cause file corruption. Corrupted mod files or corrupted game files are a major culprit of crashes or the mod just not working correctly. Simple Spawners is sensitive to corrupted game files because it references almost EVERYTHING in the game in some way or another. Below are methods to repair or replace those files.

---

To Reinstall Fresh Mod Files
1: Close Ark, Exit Steam
2: Delete every file/folder in your mods folder (Ark/ShooterGame/Content/Mods) EXCEPT for 11111111, CrystalIsles, Ragnarok, TheCenter, Valguero, and other folders with the names of maps.
3: Delete every file/folder within: Steam/steamapps/workshop
4: Start up steam, it should redownload all fresh mod files, if not then start ark then exit ark.
5: Let Steam finish downloading workshop content.
6: At the Ark main menu BEFORE you join a server or start a game, make sure it finishes installing mods (white text at bottom right corner of screen)

If you are using a server host and having mod problems, it is best to do this on your client computer, then copy your mod files/folders to the server's mod folder. Because sometimes the host company caches corrupted versions of mods.

---

Still Having Issues
1: Verify game files through Steam. If this doesn't solve your issues then continue to next steps.
2: Uninstall Ark (make sure you backup your "Saved" folder first)
3: Exit Steam
4: Delete the following folders from Steam/SteamApps: "downloading", "shadercache", "temp"
5: Start up Steam then reinstall Ark, Steam may start downloading mods as well.
6: Start up Ark, LET MODS FINISH INSTALLING (white text at bottom right corner of screen) You may need to close Ark and then reopen it to get it to start installing mods, or try joining your server.