"failed to synchronize registry data from server" error

Hi, I have this error everytime I try to use the server. I have read some posts but nothing seems to work. Here is my log: Forge server log [#CAVgttx] - mclo.gs

I already did. Both mine and the server one

Ok, so, idk how, but the server is working. I still see the red cross with the error, but I can connect to the server. The only thing I did was deleting 3 mods.

Everything was for Forge and the mods where all the same version.

I'm back again because the server wasn't working right so I created another one with less mods. I have the same error again and I still don't know what to do...

Ok, nevermind. Already fixed it again xd