Ontario LLP Registration Not Working?

The first step where I have to provide the firm details, the primary activity field is freaking bugged out. No matter what kind of NCAIS code I enter into it, I get the error message telling me to insert a valid suggestion. I've gotten error messages for other fields, but once I changed it to something proper, it went away. But because that single field won't have that error vanish, I can't submit my application at all. Since it's the weekend, I can't contact anyone from Service Ontario to fix it from their end, and I couldn't find any solution online nor from asking ChatGPT.

The only workaround I have is to fill out the PDF application, print it out and sign it, attach a cheque payable to Service Ontario, and then mail it or deliver it directly to a facility. Sadly that method isn't instant and it'll take up to 11 business days for it to process; even though my startup is strictly remote (meaning time spent otherwise on resources/expenses for offline startup don't apply for me), it's still a waste of time. I'm still in school via summer classes so I can't focus on working on the startup nonstop.
Updates
+1 y
Turns out LLP is only for companies with licensed professionals such as lawyers and accountants; I was told to go for GP or LP instead for my startup
Ontario LLP Registration Not Working?
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