If you have problems connecting and get an error message, you could try using the direct IP address for each server as opposed to the weblink.

Creative Server:

JAVA – 119.252.189.5:25565
Bedrock – 119.252.189.5
port – 25565

Survival Server:

JAVA – 27.50.75.39:25574
Bedrock – 7.50.75.39
Port – 25574

SkyBlock Server:
JAVA – 119.252.189.204:27132
Bedrock –  119.252.189.204
port – 27132

RLCraft Server (JAVA only):
119.252.189.204:25640