@Richa Kumari Thanks for posting in our Q&A.
Generally, a standard domain user can only join 10 computers into domain. If more than 10 computers, this error message will occur.
Note: Non-Microsoft link, just for the reference.
It is suggested to use domain admin account or delegate domain join permissions to the user you select.
https://www.danielengberg.com/domain-join-permissions-delegate-active-directory/
Note: Non-Microsoft link, just for the reference.
Hope it will help.
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