server won`t start with mods

help me with that i added some mods and it won`t load

Hello here is a list of things to check for:

Check for Duplicate Mods:
- Remove duplicate versions of Connector-1.0.0-beta.46+1.20.1.jar from the mods folder.
- Ensure each mod exists only once in the directory.
Verify Forge Version:
- Ensure that the Forge version installed on the server (1.21.4-54.0.16) is compatible with all mods in your mods folder.
- You can use this guide to change your server version
Check Java Version Compatibility:
- Downgrade to an older Java version 17 for 1.20.1.
Clean Cache:
- Delete the libraries folder in the server directory to force Forge to redownload missing or corrupted files.

Let me know if you'd like help with specific steps!