Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello Pavani G
Welcome to the Microsoft Community.
It seems you have some problems installing PowerApps and Power Automate. The products you mentioned are beyond the scope of reach of our community. To ensure that you can get the most reliable information on these products, I recommend you should visit their official support page, and post your issues there for help.
I've found some links for you:
PowerApps:
Support | Microsoft Power Apps
Power Apps Community - Power Platform Community (microsoft.com)
Power Automate:
Power Automate Support | Microsoft Power Platform
Microsoft Power Automate Community - Power Platform Community
About CoE tool kit:
Set up the CoE Starter Kit - Power Platform | Microsoft Learn
Best Regards,
William Yu | Microsoft Community Support Specialist