Author: & Portal: namespace not recognized at Bengali Wikisource, but corresponding Bengali word লেখক: & প্রবেশদ্বার: namespace can recognize. I have checked all namespace, I have found the problem only two namespace.
Version: unspecified
Severity: enhancement
https://bn.wikisource.org/wiki/Special:Random/Author , is not working or got the authors page for this reason.
[Moving to "Wikimedia" product as this request is about settings / configuration of the website, not about the codebase of MediaWiki itself.]
We just need to add two aliases, as the namespaces do not have any canonical names. I'll submit a patch later today.
Change 106776 had a related patch set uploaded by Odder:
Add aliases for NS 100, 106 on bnwikisource