I can't find a solution with my code about the "polyfill" problem

Question

I have a problem with the polyfill in my code. I tried to find a solution to this, but I couldn't find it.

It displays this:

Uncaught (in promise) Error: Internal error opening backing store for indexedDB.open.
 at wrappedSendMessageCallback (browser-polyfill.js:1163:16) wrappedSendMessageCallback @ browser-polyfill.js:1163 await in wrappedSendMessageCallback (asynchrone) (anonyme) @ index.js:92 (anonyme) @ index.js:92 (anonyme) @ index.js:92 polyfill.js:1193 Uncaught (in promise) Error: Internal error opening backing store for indexedDB.open.
 at wrappedSendMessageCallback (polyfill.js:1193:18) wrappedSendMessageCallback @ polyfill.js:1193 browser-polyfill.js:1163 Uncaught (in promise) Error: Internal error opening backing store for indexedDB.open. 
 at wrappedSendMessageCallback (browser-polyfill.js:1163:16)

I downloaded 2 files from "polyfill.io":

polyfill-service-main ,
polyfill-service-self-hosted-main,