What was the title you are trying to enter? Are you doing this when creating a new film, or editing an existing one?

I just read the message from the OP and want to add for general information:

Something similar happened to me a few weeks ago when I was on this particular page:

https://www.themoviedb.org/person/1081827-g-za-kov-cs/edit?active_nav_item=primary_facts

In the "Biography" field, I wanted to add the following short sentence (editing in "English (en-US)"):

"Géza Kovács is a Canadian film and television actor."

But I wasn't allowed to; I received the same error message like the OP with "Hungarian" instead of "Sundanese".

The only way I could add this sentence was by slightly changing the first name from "Géza" to "Geza". After that change, there's no error message and everything is fine (except, it's slightly the wrong name, which is not really a biggy, I think).

Best wishes,

janar

"Love [...] is the most incredible gift to give and to receive as a human being." - Ellen Page

I was trying to add a new film 'Karsandas Pay and Use'. Karsandas is a person's name.

You'll have to play with the text to get it detecting English properly. We use Google Translate for the detections and while it's pretty good, it does get tripped up from time to time. Usually it's easiest to actually use Google Translate to play with the wording since it can give you instant feedback. Once you've found the combination that is properly detecting as English, bring it over here.

Google Translate shows me exactly what I typed. Seems like this movie title is impossible to be added. Hope this issue is resolved. For now I give up trying to add this. Will check few weeks later if someone is successful adding it.

What's the overview you were trying to add?

Two brothers, Sundar and Tilok, run a pay-per-use restroom when Tilok meets Jaya.

Yes, so Google Translate is detecting it as Sudanese like I suspected. See here.

Here's a link to the content on Google Translate. You'll just have to play with the words until you get it to detect it as English.

Added! Had to change few words in overview.

Awesome!