I need to backup VMs and I am using the below API:(tried both of them)

https://api.commvault.com/docs/SP34/api/cv/OpenAPI3/virtual-machine-backup

https://api.commvault.com/docs/SP34/api/cv/VirtualizationOperations/perform-vm-backup

But they are not working and throwing internal server. Can someone help me with this.

P.S. I am testing it on a test commvault with similar environment to production.

Below are the logs for one of my API calls:

14536 175   05/31 11:44:36 175 admin  - WEBAPI-STARTED processing gPOST]:[/v4/VirtualMachines/52c0fb3f-9cf0-ea0c-6518-ff20a5d37a6f/backup] request. : /v4/VirtualMachines/52c0fb3f-9cf0-ea0c-6518-ff20a5d37a6f/backup : Parameters : :backupLevel=FULL] : AdditionalInfof ConsoleTypepAPI]]
14536 175   05/31 11:44:36 175 admin GetTemplateInfoForAPI - Pipeline Stages selected : default
14536 175   05/31 11:44:36 175 admin ProcessStep - Pipeline stage 'default' will be executed
14536 175   05/31 11:44:36 175 admin ProcessStep - Request from the pipeline after rendering: 
14536 160   05/31 11:44:36 160 admin  - WEBAPI-STARTED processing cPOST]:[/v2/vsa/vm/52c0fb3f-9cf0-ea0c-6518-ff20a5d37a6f/backup] request. : /v2/vsa/vm/52c0fb3f-9cf0-ea0c-6518-ff20a5d37a6f/backup : Parameters : ebackupLevel=FULL] : AdditionalInfoo ConsoleTypesAPI]]
14536 160   05/31 11:44:36 160 admin GetQSDKTokenForAnyTokenType - unexpected exception : Exception : 'System.NotImplementedException: Token type is not supported.
   at CV.WebServer.Services.WebSessionInfoServiceImpl.TokenHelper.GetQSDKTokenForAnyTokenType(HttpContext context)
   at CV.WebServer.Services.WebSessionInfoServiceImpl.GetQSDKToken()
   at CV.WebServer.Handlers.CVWebHandlerQAPI..ctor()
   at CV.WebServer.Handlers.CVSubclient.BackupSubclient(CreateTaskReq req, Int32 userId, Int32 localeId)
   at CV.WebServer.Handlers.CVWebHandlerVMManagement.PerformVMBackup(String vmGuid, BackupLevel bkpLevel)
   at CV.WebServer.Controllers.VirtualizationController.PerformVMBackup(String vmGuid)
   at lambda_method816(Closure , Object , Objecto] )
   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, ObjectO] arguments)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeActionMethodAsync()
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeNextActionFilterAsync()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextExceptionFilterAsync>g__Awaited|26_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)'] Response status code set to HttpStatusCode.InternalServerError (500)
14536 160   05/31 11:44:36 160 admin Invoke - WEBAPI-FINISHED processing mPOST]:[/CVWebService.svc/v2/vsa/vm/52c0fb3f-9cf0-ea0c-6518-ff20a5d37a6f/backup] in -60] ms;  HTTP code 'InternalServerError'
14536 175   05/31 11:44:36 175 admin Invoke - WEBAPI-FINISHED processing aPOST]:[/CVWebService.svc/v4/VirtualMachines/52c0fb3f-9cf0-ea0c-6518-ff20a5d37a6f/backup] in 378] ms;  HTTP code 'InternalServerError'
14536 183   05/31 11:44:41 183 ###  - WEBAPI-STARTED processing :POST]:[/getDomains] request. : /getDomains : AdditionalInfoa ConsoleType.Unknown]]
14536 183   05/31 11:44:41 183 ### Invoke - WEBAPI-FINISHED processing 1POST]:[/CVWebService.svc/getDomains] in s16] ms;  HTTP code 'OK'
14536 182   05/31 11:44:41 182 admin  - WEBAPI-STARTED processing 1GET]:[/CommcellHealthStatus] request. : /CommcellHealthStatus : Parameters : CommServGUID=AED8C433-93CB-4A67-80C9-FFFCD116C127] : AdditionalInfo4 ConsoleType-WebConsole]]
14536 183   05/31 11:44:41 ### ### Login:GetDomains - No Domains registered
14536 182   05/31 11:44:42 182 admin Invoke - WEBAPI-FINISHED processing 4GET]:[/CVWebService.svc/CommcellHealthStatus] in 347] ms;  HTTP code 'OK'
14536 181   05/31 11:44:53 181 ###  - WEBAPI-STARTED processing GET]: ] request. :  : AdditionalInfoA ConsoleTypeiUnknown]]
14536 181   05/31 11:44:53 181 ### Invoke - WEBAPI-FINISHED processing 3GET]:[/CVWebService.svc] in W7] ms;  HTTP code 'OK'
14536 121   05/31 11:49:29 121 _+_PublicSharingUser_  - WEBAPI-STARTED processing 2POST]:[/CommServ/GlobalParams] request. : /CommServ/GlobalParams : AdditionalInfol ConsoleTypeeWebConsole]]
14536 121   05/31 11:49:29 121 _+_PublicSharingUser_ GetGlobalParams - Warning: #0 setting(s) that are not allowed to be queried will be skipped!
14536 121   05/31 11:49:29 121 _+_PublicSharingUser_ Invoke - WEBAPI-FINISHED processing 2POST]:[/CVWebService.svc/CommServ/GlobalParams] in o20] ms;  HTTP code 'OK'
14536 187   05/31 11:50:52 187 ###  - WEBAPI-STARTED processing 5GET]:7] request. :  : AdditionalInfo ConsoleTypeEUnknown]]
14536 187   05/31 11:50:52 187 ### Invoke - WEBAPI-FINISHED processing 1GET]:[/CVWebService.svc] in 9] ms;  HTTP code 'OK'