Users profile does not load up after using my app

[akki18]

Plan

Premium

Country

UK

Device

(iPhone X)

Operating System

iOS

My Question or Issue

I have an app with these following scopes: "user-read-private user-read-email playlist-modify-public playlist-modify-private user-top-read user-follow-read playlist-read-private".

My app simply pulls out users' playlists and top read tracks.

One of my beta testers, out of 20, is experiencing bugs on her profile about 12 hours after using my app. Initially, songs stop after 10 seconds, and now she is unable to load up her profile. The profile is up on other devices. Could this be as a result of my app? Any guidance in fixing it?