problems starting the server on the hosting mcserverhost.com

I wanted to start a server with a modpack bricks buldings ,I downloaded mod pack to the server via the built-in modrith ,The server starts but returns an error. and i dont understand how to fix it

Crash Report UUID: 6fa90ba4-60be-422f-bc1f-2afa4048103e

dont know how to add crash logs