I removed the 1.18 version and installed the 1.16.6 version and didnt worked. After i removed every modifications and there is this error https://prnt.sc/l4Pek6QelT4F
Me and a friend of mine tried to install a forge-server with the minecraft version 1.16.4 (java 8). For us it was not possible to run the server (more information in the screenshot attached).
Furthermore i cant run the client version of forge 1.16.4 on my pc (already tried to reinstall multiple times).
🔗 Screenshot of the console (server)
🔗 Screenshot of the error (client)