Step 1: In the BM to assign the homepage permissions to personal account.
(Note: homepage only leave yourself an administrator)
Step 2: Click the link: https://business.facebook.com/
Step 3 : You will be redirected to the new version of the Manage Assets page, and then select BM.
Step 4: Select the asset public homepage – remove it from the business management platform, so that the homepage will belong to the personal account and can be added to other BM.