Unable to connect to vCenter

Hi,

We were using the OMIVV plugin in OME 3.10 for a while, worked great. We recently were running into issues with running out of disk space, so the OMIVV plugin stopped working. We added disk space according to the manuals but it wouldn't help.
So this morning i gave up eventually and found out that there was a newer version of OME (4.0) anyway. So I migrated succuesfully to a new appliance. I installed the OMIVV plugin on our new 4.0 Appliance and i'm to add a vCenter. But whatever i try i'm into the same error: "Internal server error {0}"

I've tried to call Dell ProSupport, because we've got that, but those guys are only asking for the Service Tag of the software. Running in circles there and not much of a help.

I've enabled debug logging and found this snippet in the omivvtomcatservice/gatewayservice.log when connecting:

11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 81 - Request URI : /omevv/GatewayService/v1/Consoles
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :X-FORWARDED-FOR = <MY CLIENT IP>
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :clientIp = <MY CLIENT IP>
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :loggedinip = <MY OME FQDN>
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :accept = application/json, */*
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :content-type = application/json
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :cookie = X-Auth-Token=e3821a3c-1341-4268-90fe-a682896c1b8f; X-Session-ID=06c8279a-bff0-46fa-a911-ecbd892b3dee
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :X-Requested-With = managementConsole
11 Mar 2024 14:29:15,749 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :Accept-Language = en-US,en;q=0.9
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :X-MCSI-CONSOLE-SESSION = GUI
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :Cache-Control = no-cache
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :pragma = no-cache
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :user-agent = Java/1.8.0_382
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :host = localhost
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :connection = keep-alive
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :content-length = 235
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 85 - HTTP Request header :ORIGINAL_CONTEXT = https://localhost/omevv/GatewayService/v1/Consoles
11 Mar 2024 14:29:15,750 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 156 - Received request with clientType = OMEPLUGIN.
11 Mar 2024 14:29:15,756 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.omeclientconfig.OmeClientRetryAspect- 42 - getApiClient : Api Call took 0 milliseconds
11 Mar 2024 14:29:15,769 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] ERROR com.dell.omivv.omeclientconfig.OmeClientRetryAspect- 30 - Exception :org.springframework.web.client.ResourceAccessException: I/O error on GET request for "https://localhost/api/SessionService/CurrentUser": Certificates do not conform to algorithm constraints; nested exception is javax.net.ssl.SSLHandshakeException: Certificates do not conform to algorithm constraints
11 Mar 2024 14:29:15,769 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] ERROR com.dell.omivv.omeclientconfig.OmeClientRetryAspect- 36 - Throwing exception
11 Mar 2024 14:29:15,769 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] INFO  com.dell.omivv.omeclientconfig.OmeClientRetryAspect- 42 - getCurrentUser : Api Call took 13 milliseconds
11 Mar 2024 14:29:15,769 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] ERROR com.dell.omivv.gatewayservice.securityhandler.OMEPluginAuthenticator- 74 - OME Client Internal Server Error
11 Mar 2024 14:29:15,770 [ajp-nio-0:0:0:0:0:0:0:1-8109-exec-9] ERROR com.dell.omivv.gatewayservice.securityhandler.AuthenticationHandler- 204 - Unsuccessful login attempt form client: 127.0.0.1 with client type as: OMEPLUGIN

I hope someone here is able to help.