@Khushboo Kumari, Thanks for posting in Q&A. In General, for a standard domain user, it has limit can only join 10 computers into domain. If the limit reaches, we will get the error message like ours.
Note: Non-Microsoft link, just for the reference.
To fix this, we can change to use domain admin account or delegate domain join permissions to the user you select.
Pease try the above suggestion and if there's any update, feel free to let us know.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.