An alleged error must be both specifically assigned and specifically argued in the brief of the party asserting the error to be considered by an appellate court. Wichman v. Hy-Vee, 30 Neb.App. 415, 969 N.W.2d 688 (2021). Because Gonzales has not done so, we do not address this issue and turn next to whether Wal-Mart had constructive knowledge.