It's not a duplicate,
it starts again
[WARN github.scarsz.discordsrv.dependencies.jda.internal.requests.RateLimiter - Encountered 429 on route /channels/]

I delete discordsrv from my server, this spam my channel.

Yes, this is a duplicate. See #719, specifically this comment for a solution.

I did what there is to mark but it does not fix the problem

it's not a solution,
it's just to hide the problem

This is a duplicate.