What is the appellant's burden to affirmatively demonstrate error on appeal?

" 'Perhaps the most fundamental rule of appellate law is that the judgment challenged on appeal is presumed correct, and it is the appellant's burden to affirmatively demonstrate error. [Citation.] "We must indulge in every presumption to uphold a judgment, and it is [appellant]'s burden on appeal to affirmatively demonstrate errorit will not be presumed." ' " (People v. Sullivan (2007) 151 Cal.App.4th 524, 549.) To obtain a reversal of the ruling below, the appellant must provide a record on appeal that affirmatively shows an error, and any uncertainty in the record must be resolved against the appellant. (Ibid.) Given that the record does not establish whether the Rite of

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