This has nothing to do with bugzilla, so I will close this bug. It is the template code that is wrong. If you track the problem, you will find that the problem comes from {{age}}. The reason it fails is because {{CURRENTYEAR}} is in Punjabi language, and it can't be used in math expression. I'm wondering if there is an easy way to convert numbers in foreign language to normal numbers easily, though.

(In reply to Sorawee Porncharoenwase from comment #1)

expression. I'm wondering if there is an easy way to convert numbers in
foreign language to normal numbers easily, though.

You can create a template for this such as on bn.wp[1] or hi.wp[2]. The latter is based on a lua module.

[1]: https://bn.wikipedia.org/wiki/%E0%A6%9F%E0%A7%87%E0%A6%AE%E0%A6%AA%E0%A7%8D%E0%A6%B2%E0%A7%87%E0%A6%9F:Bn2endigits

[2]: https://hi.wikipedia.org/wiki/%E0%A4%B8%E0%A4%BE%E0%A4%81%E0%A4%9A%E0%A4%BE:%E0%A4%85%E0%A4%82%E0%A4%95_%E0%A4%AA%E0%A4%B0%E0%A4%BF%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%A4%E0%A4%A8

lua/template to normalize numbers is what I think in the first place, but it is inconvenient, as we have to use it to normalize numbers all the time.

@Siddhartha Ghai: Use magic word {{formatnum:...|R}} is better.

Thank You Everyone, I used the Template and the Module used in Hindi Wikipedia and now everything is perfectly fine.

[No bug fix in a codebase involved that was not on-wiki only, hence restoring "INVALID" status - on-wiki scripts/gadgets/templates are not handled in Bugzilla; but I'm glad that you found out how to fix it!]