How can I solve ERR_SSL_VERSION_OR_CIPHER_MISMATCH?

It works well in my phone and computer and even my collegues one, but it doesn’t work certain phone.(It’s company business phone, iphone 13 pro.)
I tested SSL and it said ‘No SNI’?
I googled it and people say I need to use Cloudflare. Is that necessary? Don’t know much about network area.. looking for help. thanks

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