!technology@lemmy.world gets a ton of spam, so they have a community rule that accounts must be at least 7 days old to post. Your account is only 3 hours old.
!news@lemmy.world it’s for, well, news. Not for announcing the results of your own work.
Look for more appropriate communities, and make sure you check the community rules before you post.
Kolanaki@pawb.social 3 days ago
It’s likely because you have tried to post multiple posts with the same or similar title from an account that isn’t even a day old yet.