Problem using iOS beta

Plex Players Player Betas
1

IMG_C360802F81BE-1
IMG_C360802F81BE-1530×943 309 KB

Can anyone help?
Maybe its cause my phone is a work phone that has a corporate management system installed on it? (iPhone8)

2

Go to Settings, General, Profiles & Device Management, and click on Plex, Inc.

If you trust the Beta that was installed via buddybuild, then click Trust this App/Trust this Developer.