How to fix this error in cp?

#!/bin/bash

SrcDir=$1
DstDir=$2

#If DstDir is not exist, this creats it
if ! [ -a $DstDir ]; then
   mkdir $DstDir
fi

#Formats 
Vformat=(mp4 avi 3gp mpeg mkv wmv mov)
Iformat=(jpg jpeg png)

Year(){
   ls -l --time-style=full-iso $1 | tr -s '[:blank:]' | cut -d' ' -f6 | cut -d'-' -f1 | sort -u
}
export -f Year

Finder(){
   find $SrcDir -iname "*.$File"
}

#Make Year of File
for File in ${Vformat[@]}
do
   Finder $File
done 2>/dev/null | xargs -I {} -r -n1 bash -c 'Year {}' | xargs -I {} -n1 mkdir -p $DstDir/{}/videos

for File in ${Vformat[@]}
do
   Finder $File
done 2>/dev/null | xargs -I {} -r -n1 bash -c 'cp -r {} ${DstDir}/$(Year {})/videos'

cp: cannot creat regular file '/2023/videos': No such file or dir

Why ${DstDir} is not print? My programme copies the video files in a folder with the name of the year of their last change. The year function returns the year of the last file change. So why does cp give an error at the last line of the script?

In bash -c 'cp -r {} ${DstDir}/$(Year {})/videos', $DstDir is expanded by the new bash shell - but (unlike the function Year) you didn't export it – steeldriver

I must just export $DstDir. I'm so sorry. I'm new.