Help please 🥺

Help please 🥺

Can someone please help me I'm trying to update from Mac os 10.10.5 to Mac os Sonoma on an mbp 13" mid 2014 model and when finally downloading and unpacking big sur Which it keeps automatically changing to I get this notification. I've just recently switched from using pc to apple so I'm very new to all of this. Can someone please help.

submitted by /u/Open-Lettuce8800
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