the server does not start after installing mods.

I want to create a server with mods and aternos gives an error and lets you see the logs. There are several errors in the logs, but all the errors are as follows: Found FMLCorePluginContainsFMLMod marker in (mod) This is not recommended, @Mods should be in a separate jar from the coremod. ; The coremod (mod) does not have a MCVersion annotation, it may cause issues with this version of Minecraft ; The coremod (mod) is not signed! ; The coremod (mod) does not have a MCVersion annotation, it may cause issues with this version of Minecraft.https://mclo.gs/kjYPckk 

I tried it, nothing changed

https://mclo.gs/Br230aq

Thank you very much, everything works perfectly!