WhatsApp is being very buggy

I have an iPhone. Few days ago I sent a video and everything was fine with the audio. Now I'm trying to do it again and the video has no sound. Voice memos still record my voice. I tried resetting the iPhone and closing the app completely nothing works.
Also when I try to send a voice message it says 'Application Error Failed to save audio note'

Try searching it up on whatsapp website

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