I believe I found a solution here to recover the pam-abl database. No guarantees but it worked for me.
sudo apt install db5.3-util
sudo db5.3_verify -h /var/lib/abl hosts.db
if verification gives error (should be same error as you shared above) then,
sudo db5.3_recover -v -h /var/lib/abl
Hope it works. Good luck.