PMS 1.13.4.5271 on Synology DSM 6.1.7-15284 Update 2

Upgraded to PlexMediaServer-1.13.4.5251-2e6e8f841-x86 on Synology DSM 6.2-23739 Update 2 today. PLex not able to execute. Doesn’t come up, deleted and re-installed, no solution, and downgrading not possible.