Plex crashing every night on all versions after v1.23.x

Server Version#:1.24.1.4931
Platform: Windows

Every morning I notice plex is down/crashed and I have to start the server back up. I noticed the issue with versions 1.23.x onward. I was able to see some logging information but have been unable to to determine the root cause.

Plex DNLA Server:
Aug 27, 2021 22:07:59.920 [29652] DEBUG - Mapped client to generic profile: X-AV-Physical-Unit-Info: pa=“UBP-X700”;; X-AV-Client-Info: av=5.0; cn=“Sony Corporation”; mn=“UBP-X700”; mv=“2.0”;; Host: 192.168.1.115:32469; User-Agent: UPnP/1.0 DLNADOC/1.50; Content-Length: 273; Content-Type: text/xml; charset=“utf-8”; SOAPACTION: “urn:schemas-upnp-org:service:ConnectionManager:1#GetProtocolInfo”

Aug 28, 2021 02:03:23.629 [6828] ERROR - Unable to lock named mutex 9334581e-7251-4ef7-a8ec-5bfe8e89ff68: 0x80

Aug 28, 2021 02:03:23.629 [6828] DEBUG - Stopping UPNP server

Plex Media Server.log:
Aug 28, 2021 02:03:21.533 [45416] DEBUG - [EventSourceClient/mediaserver] Wrote data, reading reply.
Aug 28, 2021 02:03:21.565 [45416] ERROR - Thread: Couldn’t add a new thread to the pool of size 20: boost::thread_resource_error: Resource temporarily unavailable
Aug 28, 2021 02:03:21.577 [45416] DEBUG - [EventSourceClient/mediaserver] Read HTTP reply header.
Aug 28, 2021 02:03:21.577 [45416] DEBUG - [EventSourceClient/mediaserver] Successfully connected to 74-89-233-185.3ff3b49991714eb0a475fcb97d21f25e.plex.direct.
Aug 28, 2021 02:03:21.632 [52512] ERROR - Thread: Couldn’t add a new thread to the pool of size 20: boost::thread_resource_error: Resource temporarily unavailable
Aug 28, 2021 02:03:21.633 [52512] ERROR - Thread: Couldn’t add a new thread to the pool of size 20: boost::thread_resource_error: Resource temporarily unavailable
Plex Media Server Logs_2021-08-28_10-23-21.zip (6.9 MB)
Plex Media Server Logs_2021-08-27_14-57-08.zip (7.7 MB)

I have had the same issue albeit on a Mac platform. Happens approximately 130a. :neutral_face:

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