3774642 - Error "A server error has occurred!" while accessing Settings page of Tosca Server

• This article will provide you with a possible solution for a "A server error has occurred!" error while accessing your Tosca Servers Settings page in Tosca Server 2024.2 and earlier. 
• Your company utilizes a Load balancer / Reverse Proxy / Web Application Firewall to access your Tosca Server. You reconfigured your Tosca Server GatewaySettings to match your Load Balancer’s hostname. After restarting your Tricentis services you are experiencing the error "A server error has occurred!" while accessing the Settings page via https://a123.host /#/configuration/gatewayservice. Looking into the Tricentis Authentication Service Logs we can see the error "Invalid redirect_uri " being logged:

• SAP Enterprise Continuous Testing by Tricentis
• SAP Enterprise Continuous Testing by Tricentis Server 2024.2 and earlier

ECT, TOSCA , KBA , XX-PART-TRI-ECT , SAP Enterprise Continuous Testing by Tricentis , Problem