What are common causes of 'Error loading mods'?

Common causes of 'Error loading mods' include: 1) **Minecraft Version Incompatibility:** A newer version of Minecraft might not support certain mods. 2) **Corrupted Mod Files:** Downloaded mod files can become damaged during download or transfer. 3) **Conflicting Mods:** Multiple mods with conflicting requirements can cause instability. 4) **Mod Loader Issues:** Problems with the Forge or Fabric mod loader can hinder mod loading. 5) **Insufficient System Resources:** A low-powered computer might struggle to load and run mods effectively.