RESOLUTION
Please, try to clean "PMM" table in "PSA" database with the following command:
# mysql -uadmin -p`cat /etc/psa/.psa.shadow` -D psa -e 'delete from PMM' It should helpĀ solve the problem.
# mysql -uadmin -p`cat /etc/psa/.psa.shadow` -D psa -e 'delete from PMM'