Server lag with 23 players

Hello.

I have a problem with my server. I have the most cheap vps on contabo Contabo :1st_place_medal: Quality VPS & Dedicated Servers At Incredible Prices :1st_place_medal: 4 vCores, 8 GB RAM & 200 GB SSD

But when my server reach 23 players start lag and console hive me that’s errors:

May be your resources, or “cheap” host, but there’s not a lot of information supplied for anyone like myself to check. Add more info and maybe someone could take a look.