GParted shrink partition error e2fsck upgrade.
Upgrade the e2fsck 1.45.5 to version 1.47.1 so that GParted is able to check newer file systems or to shrink a partition.
GParted (e2fsck 1.45.5 (07-Jan-2020) upgrade to 1.47.1)
https://e2fsprogs[dot]sourceforge[dot]net/
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e2fsck -V
sudo apt-get install gcc
sudo apt-get install make
./configure
make
sudo make install
Start GParted and choose the partition to 'check' with the right mouse button or put one of these commands in the terminal:
e2fsck -pf /dev/sda
e2fsck -f /dev/vgname/lvname
After that you can shrink the drive normally with GParted!
Recreate the SWAP drive:
SwapOFF
Delete Swap + Extended Partition (977MB)
Create Extended Partition + Swap (977MB)
SwapON