Synology made a change in DSM 6.2 Update 2.
That change restricts 32 bit PMS versions from 64 bit machines.
Your NAS has an Intel Core i3-4130
We were forced to restrict installation of 32 bit software on all 64 bit hosts except two Synology has revision locked at DSM 5.2
Your machine, being DSM 6.2 eligible, can no longer use 32 bit PMS
