[HELP] Error: Function called outside component initialization

[psociety]

Hi!
Thank you for creating SSWR!

I'm getting Error: Function called outside component initialization but i can't understand why.
SSWR is called inside onMount.
onMount -> wrapper method -> SSWR.

Error trace:

Where it starts:

Wrapper method:

Versions:

"svelte": "^3.49.0",
"svelte-preprocess": "^4.10.6",
"vite": "^3.0.2",
"sswr": "^1.7.0",
"@sveltejs/vite-plugin-svelte": "^1.0.0-next.44",

I don't use SvelteKit

What i'm missing out? What i'm doing wrong? Cant SSWR be used inside promises?

Edit:
I've tried upgrading "@sveltejs/vite-plugin-svelte": "^1.1.0", but didnt make any change.