I’m having the same issue except I have the latest version 1.23.3.4706 and on Windows Server 2019 Standard. I too have checked all dll’s and ran a Malware/Antivirus scan with no luck, it’s almost to the exact minute where it will crash after running for 2 hours. This started happening right after I updated PMS. Hope someone has an answer as I’ve been fighting this for 2 days now. Here are my server logs