CURL error from module script?

I have the line below inside a PlayerAdded event, it normally works; it works in studio mode, it works in studio server test mode. It also works in online mode; until it doesn't. When i join the game everything works perfectly. My friend follows me it works perfectly. A few other people follow me but nothing works for them; i rejoin and nothing works for me either. And the error im getting is;

CURL error (curl_easy_perform, 0653A198); SSL connect error

And the line below is what's causing this error.

local allcrews = modules.crew:GetAllCrews()

I looked up on google and this normally happens for HTML services and data stores, but this is just a module script? And it doesn't have anything Data Store related things inside the GetAllCrews() function either. What's causing this?