Can you see all fiends in view form and in the default view? it was a critical field? create a new field copy all value to the new field, and delete corrupted field
Connect-PnPOnline -Url "https://yourtenant.sharepoint.com/sites/yoursite" -Interactive
Get-PnPField -List "YourListName"
Remove-PnPField -List "YourListName" -Identity "FieldInternalName"