i have a problem, whenever i go on my server. i use aternos. i go into my tardis and the chunks dont load. i did F3+A/reloading the chunks but it dident work

everythingi try doesent work, im scared to delete the config files cuz it might break my server.well, if course it will

here is the video showing my problem https://youtu.be/1eyW7hwkeuM