The problem is not the server. One of the reasons is because lemmy world is being DDoS attacked by certain party with grudges. Because lemmy is not used to this kind of attack, which is made difficult by way it is designed and open source nature where the attacker can easily uncover vulnerabilities, it took some times and learning to mitigate them. You can open new account in other instances or move if that’s too much inconvenience for you. No one is stopping you.