Your request to install package "Admin Spr 21 Spring 2021 V3" was unsuccessful. None of the data or setup information in your salesforce.com organization was affected.
If your install continues to fail, contact Salesforce CRM Support through your normal channels and provide the following information.
Organization:XXXXX (00D09000008Z7yG)
User: Kamlesh Miyan (00509000007fjpx)
Package: Admin Spr 21 (04t4x000000lxUz)
Problem:
1. Unexpected Error
The package installation failed. Please provide the following information to the publisher:
Organization Name: XXXXX
Organization ID: 00D09000008Z7yG
Package: Admin Spr 21
Version: 1.1
Error Message: The post install script failed.