Hello Sunil!
Just a precaution, the link you shared for the documentation has expired and no longer corresponds to our guide.
The correct link for an AIO 4.4.0 deployment is as follows:
Having said that, I see that at the time of installation, it was not possible for the product to create the "wazuh-alerts-*" index.
You can try to create it manually, but maybe this error is secondary, because of some inconvenience in the installation or lack of configuration.
To do this you should go to: Stack Management -> Index patterns -> Create index pattern
And once there type the name of the index you want to define.
Please let me know if you are getting any other type of error.
I recommend you to restart the Wazuh Manager, Indexer and Dashboard services.
Regards.