It’s likely not an addon issue, servers often are like that or have issues depending on if they don’t have everything correctly defined. I know that bridge has a special setting called "use on dedicated server" which I am unsure of what that does but that would be closest thing to an issue If the addon works fine. It’s probably some issue due to the server.
#I made a addon, not working on aternos
white kernel
slate marlin
Fixed the issue by removing everything but the necesary parts from my manifest!